55412856 has 32 divisors (see below), whose sum is σ = 153925200. Its totient is φ = 18470880.

The previous prime is 55412849. The next prime is 55412857. The reversal of 55412856 is 65821455.

It is a super-2 number, since 2×55412856² = 6141169220153472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55412856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55412857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128055 + ... + 128486.

Almost surely, 2^55412856 is an apocalyptic number.

It is an amenable number.

55412856 is an abundant number, since it is smaller than the sum of its proper divisors (98512344).

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

55412856 is a wasteful number, since it uses less digits than its factorization.

55412856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256556 (or 256546 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 55412856 is about 7443.9811928833. The cubic root of 55412856 is about 381.2444336373.

The spelling of 55412856 in words is "fifty-five million, four hundred twelve thousand, eight hundred fifty-six".