56381525 has 12 divisors (see below), whose sum is σ = 71803812. Its totient is φ = 43885440.

The previous prime is 56381509. The next prime is 56381527. The reversal of 56381525 is 52518365.

It can be written as a sum of positive squares in 6 ways, for example, as 461041 + 55920484 = 679^2 + 7478^2 .

It is not a de Polignac number, because 56381525 - 2⁴ = 56381509 is a prime.

It is a super-2 number, since 2×56381525² = 6357752722651250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56381527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29552 + ... + 31401.

It is an arithmetic number, because the mean of its divisors is an integer number (5983651).

Almost surely, 2^56381525 is an apocalyptic number.

It is an amenable number.

56381525 is a deficient number, since it is larger than the sum of its proper divisors (15422287).

56381525 is a wasteful number, since it uses less digits than its factorization.

56381525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61000 (or 60995 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 56381525 is about 7508.7632137390. The cubic root of 56381525 is about 383.4531173654.

The spelling of 56381525 in words is "fifty-six million, three hundred eighty-one thousand, five hundred twenty-five".