56991024 has 60 divisors (see below), whose sum is σ = 160613232. Its totient is φ = 18864000.

The previous prime is 56991007. The next prime is 56991031. The reversal of 56991024 is 42019965.

56991024 is a `hidden beast` number, since 569 + 91 + 0 + 2 + 4 = 666.

56991024 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 self number, because there is not a number n which added to its sum of digits gives 56991024.

It is an unprimeable number.

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, 20434 + ... + 23054.

Almost surely, 2^56991024 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 56991024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80306616).

56991024 is an abundant number, since it is smaller than the sum of its proper divisors (103622208).

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

56991024 is a wasteful number, since it uses less digits than its factorization.

56991024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 56991024 is about 7549.2399617445. The cubic root of 56991024 is about 384.8299108121.

The spelling of 56991024 in words is "fifty-six million, nine hundred ninety-one thousand, twenty-four".