55917504 has 84 divisors (see below), whose sum is σ = 161428176. Its totient is φ = 18505728.

The previous prime is 55917503. The next prime is 55917517. The reversal of 55917504 is 40571955.

55917504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55917503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110917 + ... + 111419.

It is an arithmetic number, because the mean of its divisors is an integer number (1921764).

Almost surely, 2^55917504 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 55917504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80714088).

55917504 is an abundant number, since it is smaller than the sum of its proper divisors (105510672).

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

55917504 is a wasteful number, since it uses less digits than its factorization.

55917504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 55917504 is about 7477.8007462087. The cubic root of 55917504 is about 382.3982761662.

The spelling of 55917504 in words is "fifty-five million, nine hundred seventeen thousand, five hundred four".