551565315 has 96 divisors (see below), whose sum is σ = 1149120000. Its totient is φ = 250278336.

The previous prime is 551565293. The next prime is 551565319. The reversal of 551565315 is 513565155.

551565315 is a `hidden beast` number, since 551 + 56 + 53 + 1 + 5 = 666.

It is not a de Polignac number, because 551565315 - 2⁵ = 551565283 is a prime.

It is a super-2 number, since 2×551565315² = 608448593422098450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551565315.

It is not an unprimeable number, because it can be changed into a prime (551565319) 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, 1316176 + ... + 1316594.

It is an arithmetic number, because the mean of its divisors is an integer number (11970000).

Almost surely, 2^551565315 is an apocalyptic number.

551565315 is an abundant number, since it is smaller than the sum of its proper divisors (597554685).

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

551565315 is a wasteful number, since it uses less digits than its factorization.

551565315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 633 counting only the distinct ones).

The product of its digits is 56250, while the sum is 36.

The square root of 551565315 is about 23485.4277159263. The cubic root of 551565315 is about 820.0978046140.

The spelling of 551565315 in words is "five hundred fifty-one million, five hundred sixty-five thousand, three hundred fifteen".