56638244 has 12 divisors (see below), whose sum is σ = 106741404. Its totient is φ = 26140704.

The previous prime is 56638223. The next prime is 56638277. The reversal of 56638244 is 44283665.

It can be written as a sum of positive squares in 2 ways, for example, as 5943844 + 50694400 = 2438^2 + 7120^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56638198 and 56638207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544547 + ... + 544650.

It is an arithmetic number, because the mean of its divisors is an integer number (8895117).

Almost surely, 2^56638244 is an apocalyptic number.

It is an amenable number.

56638244 is a deficient number, since it is larger than the sum of its proper divisors (50103160).

56638244 is a wasteful number, since it uses less digits than its factorization.

56638244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089214 (or 1089212 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 56638244 is about 7525.8384250527. The cubic root of 56638244 is about 384.0342218488.

The spelling of 56638244 in words is "fifty-six million, six hundred thirty-eight thousand, two hundred forty-four".