56555310 has 96 divisors (see below), whose sum is σ = 160220160. Its totient is φ = 12737088.

The previous prime is 56555309. The next prime is 56555329. The reversal of 56555310 is 1355565.

It is a super-2 number, since 2×56555310² = 6397006178392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115887 + ... + 116373.

It is an arithmetic number, because the mean of its divisors is an integer number (1668960).

Almost surely, 2^56555310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56555310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80110080).

56555310 is an abundant number, since it is smaller than the sum of its proper divisors (103664850).

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

56555310 is a wasteful number, since it uses less digits than its factorization.

56555310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 56555310 is about 7520.3264556800. The cubic root of 56555310 is about 383.8466863013.

It can be divided in two parts, 56555 and 310, that added together give a palindrome (56865).

The spelling of 56555310 in words is "fifty-six million, five hundred fifty-five thousand, three hundred ten".