56521250 has 40 divisors (see below), whose sum is σ = 107215680. Its totient is φ = 22338000.

The previous prime is 56521249. The next prime is 56521253. The reversal of 56521250 is 5212565.

56521250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56521253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 128531 + ... + 128969.

It is an arithmetic number, because the mean of its divisors is an integer number (2680392).

Almost surely, 2^56521250 is an apocalyptic number.

56521250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56521250 is a deficient number, since it is larger than the sum of its proper divisors (50694430).

56521250 is a wasteful number, since it uses less digits than its factorization.

56521250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56521250 is about 7518.0615852758. The cubic root of 56521250 is about 383.7696145902.

The spelling of 56521250 in words is "fifty-six million, five hundred twenty-one thousand, two hundred fifty".