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555780252 = 2231722911897
BaseRepresentation
bin100001001000001…
…000100010011100
31102201210120011210
4201020020202130
52114234432002
6131052144420
716526024406
oct4110104234
91381716153
10555780252
112657a5a25
12136168110
138b1b5471
1453b55b76
1533bd596c
hex2120889c

555780252 has 48 divisors (see below), whose sum is σ = 1379216160. Its totient is φ = 173586432.

The previous prime is 555780227. The next prime is 555780263. The reversal of 555780252 is 252087555.

It is a self number, because there is not a number n which added to its sum of digits gives 555780252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40768 + ... + 52664.

It is an arithmetic number, because the mean of its divisors is an integer number (28733670).

Almost surely, 2555780252 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 555780252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689608080).

555780252 is an abundant number, since it is smaller than the sum of its proper divisors (823435908).

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

555780252 is a wasteful number, since it uses less digits than its factorization.

555780252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12150 (or 12148 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 555780252 is about 23574.9920890761. The cubic root of 555780252 is about 822.1815063219.

The spelling of 555780252 in words is "five hundred fifty-five million, seven hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 229 458 687 916 1374 2748 3893 7786 11679 11897 15572 23358 23794 35691 46716 47588 71382 142764 202249 404498 606747 808996 1213494 2426988 2724413 5448826 8173239 10897652 16346478 32692956 46315021 92630042 138945063 185260084 277890126 555780252