56726320 has 120 divisors (see below), whose sum is σ = 159030000. Its totient is φ = 18740736.

The previous prime is 56726281. The next prime is 56726333. The reversal of 56726320 is 2362765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113431 + ... + 113929.

It is an arithmetic number, because the mean of its divisors is an integer number (1325250).

Almost surely, 2^56726320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56726320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79515000).

56726320 is an abundant number, since it is smaller than the sum of its proper divisors (102303680).

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

56726320 is a wasteful number, since it uses less digits than its factorization.

56726320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 56726320 is about 7531.6877258686. The cubic root of 56726320 is about 384.2331844693.

The spelling of 56726320 in words is "fifty-six million, seven hundred twenty-six thousand, three hundred twenty".