55797856 has 24 divisors (see below), whose sum is σ = 113641920. Its totient is φ = 26936448.

The previous prime is 55797821. The next prime is 55797869. The reversal of 55797856 is 65879755.

It is a super-2 number, since 2×55797856² = 6226801468393472, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 29136 + ... + 30991.

It is an arithmetic number, because the mean of its divisors is an integer number (4735080).

Almost surely, 2^55797856 is an apocalyptic number.

It is an amenable number.

55797856 is an abundant number, since it is smaller than the sum of its proper divisors (57844064).

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

55797856 is a wasteful number, since it uses less digits than its factorization.

55797856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60166 (or 60158 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 52.

The square root of 55797856 is about 7469.7962488946. The cubic root of 55797856 is about 382.1253392050.

The spelling of 55797856 in words is "fifty-five million, seven hundred ninety-seven thousand, eight hundred fifty-six".