56475637 has 4 divisors (see below), whose sum is σ = 56616876. Its totient is φ = 56334400.

The previous prime is 56475613. The next prime is 56475659. The reversal of 56475637 is 73657465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55487601 + 988036 = 7449^2 + 994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56475637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56475593 and 56475602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56475667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70018 + ... + 70819.

It is an arithmetic number, because the mean of its divisors is an integer number (14154219).

Almost surely, 2^56475637 is an apocalyptic number.

It is an amenable number.

56475637 is a deficient number, since it is larger than the sum of its proper divisors (141239).

56475637 is a wasteful number, since it uses less digits than its factorization.

56475637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141238.

The product of its digits is 529200, while the sum is 43.

The square root of 56475637 is about 7515.0274117930. The cubic root of 56475637 is about 383.6663519860. Note that the first 3 decimals are identical.

The spelling of 56475637 in words is "fifty-six million, four hundred seventy-five thousand, six hundred thirty-seven".