56263644 has 36 divisors (see below), whose sum is σ = 145694640. Its totient is φ = 18296640.

The previous prime is 56263633. The next prime is 56263661. The reversal of 56263644 is 44636265.

56263644 is a `hidden beast` number, since 5 + 6 + 2 + 6 + 3 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56263599 and 56263608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17584 + ... + 20535.

Almost surely, 2^56263644 is an apocalyptic number.

It is an amenable number.

56263644 is an abundant number, since it is smaller than the sum of its proper divisors (89430996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56263644 is a wasteful number, since it uses less digits than its factorization.

56263644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38170 (or 38165 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 56263644 is about 7500.9095448485. The cubic root of 56263644 is about 383.1856930283.

The spelling of 56263644 in words is "fifty-six million, two hundred sixty-three thousand, six hundred forty-four".