56155656 has 32 divisors (see below), whose sum is σ = 140912640. Its totient is φ = 18648768.

The previous prime is 56155591. The next prime is 56155667. The reversal of 56155656 is 65655165.

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, 2425 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (4403520).

Almost surely, 2^56155656 is an apocalyptic number.

It is an amenable number.

56155656 is an abundant number, since it is smaller than the sum of its proper divisors (84756984).

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

56155656 is a wasteful number, since it uses less digits than its factorization.

56155656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733 (or 8729 counting only the distinct ones).

The product of its digits is 135000, while the sum is 39.

The square root of 56155656 is about 7493.7077605148. The cubic root of 56155656 is about 382.9403838883.

The spelling of 56155656 in words is "fifty-six million, one hundred fifty-five thousand, six hundred fifty-six".