56117504 has 36 divisors (see below), whose sum is σ = 112632576. Its totient is φ = 27904512.

The previous prime is 56117491. The next prime is 56117521. The reversal of 56117504 is 40571165.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 56597 + ... + 57579.

Almost surely, 2^56117504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56117504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56316288).

56117504 is an abundant number, since it is smaller than the sum of its proper divisors (56515072).

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

56117504 is an equidigital number, since it uses as much as digits as its factorization.

56117504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 56117504 is about 7491.1617256604. The cubic root of 56117504 is about 382.8536413559.

Adding to 56117504 its reverse (40571165), we get a palindrome (96688669).

The spelling of 56117504 in words is "fifty-six million, one hundred seventeen thousand, five hundred four".