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551552001 = 371121359283
BaseRepresentation
bin100000111000000…
…000010000000001
31102102211202002220
4200320000100001
52112144131001
6130421401253
716445054220
oct4070002001
91372752086
10551552001
11263378200
12134869229
138a364a40
1453374cb7
153364cc36
hex20e00401

551552001 has 96 divisors (see below), whose sum is σ = 1015311360. Its totient is φ = 259079040.

The previous prime is 551551997. The next prime is 551552017. The reversal of 551552001 is 100255155.

It is not a de Polignac number, because 551552001 - 22 = 551551997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551552021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1948806 + ... + 1949088.

It is an arithmetic number, because the mean of its divisors is an integer number (10576160).

Almost surely, 2551552001 is an apocalyptic number.

It is an amenable number.

551552001 is a deficient number, since it is larger than the sum of its proper divisors (463759359).

551552001 is a wasteful number, since it uses less digits than its factorization.

551552001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 551552001 is about 23485.1442618520. The cubic root of 551552001 is about 820.0912058971.

The spelling of 551552001 in words is "five hundred fifty-one million, five hundred fifty-two thousand, one".

Divisors: 1 3 7 11 13 21 33 39 59 77 91 121 143 177 231 273 283 363 413 429 649 767 847 849 1001 1239 1573 1947 1981 2301 2541 3003 3113 3679 4543 4719 5369 5943 7139 8437 9339 11011 11037 13629 16107 16697 21417 21791 25311 25753 33033 34243 40469 49973 50091 59059 65373 77259 92807 102729 116879 121407 149919 177177 183667 217061 239701 278421 283283 350637 445159 551001 649649 651183 719103 849849 1285669 1335477 1519427 1948947 2020337 2387671 3116113 3857007 4558281 6061011 7163013 9348339 14142359 16713697 26264381 42427077 50141091 78793143 183850667 551552001