56388025 has 12 divisors (see below), whose sum is σ = 71242092. Its totient is φ = 44258240.

The previous prime is 56388001. The next prime is 56388041. The reversal of 56388025 is 52088365.

It can be written as a sum of positive squares in 6 ways, for example, as 5308416 + 51079609 = 2304^2 + 7147^2 .

It is not a de Polignac number, because 56388025 - 2⁵ = 56387993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19954 + ... + 22603.

It is an arithmetic number, because the mean of its divisors is an integer number (5936841).

Almost surely, 2^56388025 is an apocalyptic number.

It is an amenable number.

56388025 is a deficient number, since it is larger than the sum of its proper divisors (14854067).

56388025 is a wasteful number, since it uses less digits than its factorization.

56388025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42620 (or 42615 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 56388025 is about 7509.1960288702. The cubic root of 56388025 is about 383.4678523901.

It can be divided in two parts, 563 and 88025, that added together give a palindrome (88588).

The spelling of 56388025 in words is "fifty-six million, three hundred eighty-eight thousand, twenty-five".