56250025 has 24 divisors (see below), whose sum is σ = 79541784. Its totient is φ = 39091200.

The previous prime is 56250017. The next prime is 56250037. The reversal of 56250025 is 52005265.

It can be written as a sum of positive squares in 12 ways, for example, as 14531344 + 41718681 = 3812^2 + 6459^2 .

It is not a de Polignac number, because 56250025 - 2³ = 56250017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (3314241).

Almost surely, 2^56250025 is an apocalyptic number.

It is an amenable number.

56250025 is a deficient number, since it is larger than the sum of its proper divisors (23291759).

56250025 is a wasteful number, since it uses less digits than its factorization.

56250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221 (or 10216 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 56250025 is about 7500.0016666665. The cubic root of 56250025 is about 383.1547729604.

Subtracting from 56250025 its sum of digits (25), we obtain a square (56250000 = 7500²).

It can be divided in two parts, 562500 and 25, that multiplied together give a square (14062500 = 3750²).

The spelling of 56250025 in words is "fifty-six million, two hundred fifty thousand, twenty-five".