56663120 has 40 divisors (see below), whose sum is σ = 132269064. Its totient is φ = 22574592.

The previous prime is 56663093. The next prime is 56663137. The reversal of 56663120 is 2136665.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 56010256 = 808^2 + 7484^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 20882 + ... + 23438.

Almost surely, 2^56663120 is an apocalyptic number.

It is an amenable number.

56663120 is an abundant number, since it is smaller than the sum of its proper divisors (75605944).

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

56663120 is a wasteful number, since it uses less digits than its factorization.

56663120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847 (or 2841 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 56663120 is about 7527.4909498451. The cubic root of 56663120 is about 384.0904373218.

Adding to 56663120 its reverse (2136665), we get a palindrome (58799785).

The spelling of 56663120 in words is "fifty-six million, six hundred sixty-three thousand, one hundred twenty".