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551033252 = 2271161139211
BaseRepresentation
bin100000110110000…
…001100110100100
31102101212101111222
4200312001212210
52112031031002
6130402315512
716440463640
oct4066014644
91371771458
10551033252
11263053490
12134658b98
138a2128a3
145327bc20
15335991a2
hex20d819a4

551033252 has 96 divisors (see below), whose sum is σ = 1236587520. Its totient is φ = 208656000.

The previous prime is 551033237. The next prime is 551033279. The reversal of 551033252 is 252330155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2611427 + ... + 2611637.

It is an arithmetic number, because the mean of its divisors is an integer number (12881120).

Almost surely, 2551033252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551033252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618293760).

551033252 is an abundant number, since it is smaller than the sum of its proper divisors (685554268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551033252 is a wasteful number, since it uses less digits than its factorization.

551033252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 551033252 is about 23474.0974693384. The cubic root of 551033252 is about 819.8340195483.

The spelling of 551033252 in words is "five hundred fifty-one million, thirty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 7 11 14 22 28 44 61 77 122 139 154 211 244 278 308 422 427 556 671 844 854 973 1342 1477 1529 1708 1946 2321 2684 2954 3058 3892 4642 4697 5908 6116 8479 9284 9394 10703 12871 16247 16958 18788 21406 25742 29329 32494 33916 42812 51484 58658 59353 64988 90097 93269 117316 118706 141581 180194 186538 205303 237412 283162 322619 360388 373076 410606 566324 645238 652883 821212 991067 1290476 1305766 1789069 1982134 2258333 2611532 3578138 3964268 4516666 7156276 9033332 12523483 19679759 25046966 39359518 50093932 78719036 137758313 275516626 551033252