56663937 has 36 divisors (see below), whose sum is σ = 91547092. Its totient is φ = 33739200.

The previous prime is 56663923. The next prime is 56663953. The reversal of 56663937 is 73936665.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 54154881 = 1584^2 + 7359^2 .

It is not a de Polignac number, because 56663937 - 2¹⁹ = 56139649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56663892 and 56663901.

It is not an unprimeable number, because it can be changed into a prime (56663137) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66003 + ... + 66855.

Almost surely, 2^56663937 is an apocalyptic number.

It is an amenable number.

56663937 is a deficient number, since it is larger than the sum of its proper divisors (34883155).

56663937 is a wasteful number, since it uses less digits than its factorization.

56663937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 928 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 56663937 is about 7527.5452173999. The cubic root of 56663937 is about 384.0922833219.

It can be divided in two parts, 56663 and 937, that added together give a square (57600 = 240²).

The spelling of 56663937 in words is "fifty-six million, six hundred sixty-three thousand, nine hundred thirty-seven".