55712072 has 32 divisors (see below), whose sum is σ = 117391680. Its totient is φ = 24594240.

The previous prime is 55712057. The next prime is 55712087. The reversal of 55712072 is 27021755.

It is an interprime number because it is at equal distance from previous prime (55712057) and next prime (55712087).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9254 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (3668490).

Almost surely, 2^55712072 is an apocalyptic number.

55712072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55712072 is an abundant number, since it is smaller than the sum of its proper divisors (61679608).

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

55712072 is a wasteful number, since it uses less digits than its factorization.

55712072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23333 (or 23329 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 55712072 is about 7464.0519826700. The cubic root of 55712072 is about 381.9294114062.

The spelling of 55712072 in words is "fifty-five million, seven hundred twelve thousand, seventy-two".