56155712 has 28 divisors (see below), whose sum is σ = 111677196. Its totient is φ = 28016640.

The previous prime is 56155711. The next prime is 56155727. The reversal of 56155712 is 21755165.

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 39639616 = 4064^2 + 6296^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (56155711) 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, 48128 + ... + 49280.

Almost surely, 2^56155712 is an apocalyptic number.

It is an amenable number.

56155712 is a deficient number, since it is larger than the sum of its proper divisors (55521484).

56155712 is a wasteful number, since it uses less digits than its factorization.

56155712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1916 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 56155712 is about 7493.7114969820. The cubic root of 56155712 is about 382.9405111812.

The spelling of 56155712 in words is "fifty-six million, one hundred fifty-five thousand, seven hundred twelve".