53663656 has 32 divisors (see below), whose sum is σ = 103530240. Its totient is φ = 26062848.

The previous prime is 53663647. The next prime is 53663671. The reversal of 53663656 is 65636635.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88105 + ... + 88711.

It is an arithmetic number, because the mean of its divisors is an integer number (3235320).

Almost surely, 2^53663656 is an apocalyptic number.

It is an amenable number.

53663656 is a deficient number, since it is larger than the sum of its proper divisors (49866584).

53663656 is a wasteful number, since it uses less digits than its factorization.

53663656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 909 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

The square root of 53663656 is about 7325.5481706149. The cubic root of 53663656 is about 377.1899265119.

The spelling of 53663656 in words is "fifty-three million, six hundred sixty-three thousand, six hundred fifty-six".