56117120 has 32 divisors (see below), whose sum is σ = 134156520. Its totient is φ = 22446592.

The previous prime is 56117111. The next prime is 56117147. The reversal of 56117120 is 2171165.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43202 + ... + 44481.

Almost surely, 2^56117120 is an apocalyptic number.

It is an amenable number.

56117120 is an abundant number, since it is smaller than the sum of its proper divisors (78039400).

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

56117120 is an equidigital number, since it uses as much as digits as its factorization.

56117120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87702 (or 87690 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 56117120 is about 7491.1360954130. The cubic root of 56117120 is about 382.8527680922.

Adding to 56117120 its reverse (2171165), we get a palindrome (58288285).

The spelling of 56117120 in words is "fifty-six million, one hundred seventeen thousand, one hundred twenty".