551856968 has 16 divisors (see below), whose sum is σ = 1114326780. Its totient is φ = 254703168.

The previous prime is 551856967. The next prime is 551856989. The reversal of 551856968 is 869658155.

It can be written as a sum of positive squares in 2 ways, for example, as 408767524 + 143089444 = 20218^2 + 11962^2 .

It is a super-2 number, since 2×551856968² = 609092226260306048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551856967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2653055 + ... + 2653262.

Almost surely, 2^551856968 is an apocalyptic number.

It is an amenable number.

551856968 is an abundant number, since it is smaller than the sum of its proper divisors (562469812).

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

551856968 is a wasteful number, since it uses less digits than its factorization.

551856968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306336 (or 5306332 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 53.

The square root of 551856968 is about 23491.6361286310. The cubic root of 551856968 is about 820.2423277453.

The spelling of 551856968 in words is "five hundred fifty-one million, eight hundred fifty-six thousand, nine hundred sixty-eight".