56505425 has 6 divisors (see below), whose sum is σ = 70066758. Its totient is φ = 45204320.

The previous prime is 56505413. The next prime is 56505437. The reversal of 56505425 is 52450565.

56505425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56505413) and next prime (56505437).

It can be written as a sum of positive squares in 3 ways, for example, as 15147664 + 41357761 = 3892^2 + 6431^2 .

It is not a de Polignac number, because 56505425 - 2²⁴ = 39728209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56505391 and 56505400.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1130084 + ... + 1130133.

It is an arithmetic number, because the mean of its divisors is an integer number (11677793).

Almost surely, 2^56505425 is an apocalyptic number.

It is an amenable number.

56505425 is a deficient number, since it is larger than the sum of its proper divisors (13561333).

56505425 is a wasteful number, since it uses less digits than its factorization.

56505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260227 (or 2260222 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 56505425 is about 7517.0090461566. The cubic root of 56505425 is about 383.7337948997.

The spelling of 56505425 in words is "fifty-six million, five hundred five thousand, four hundred twenty-five".