56891824 has 20 divisors (see below), whose sum is σ = 120249000. Its totient is φ = 25859840.

The previous prime is 56891801. The next prime is 56891837. The reversal of 56891824 is 42819865.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161449 + ... + 161800.

It is an arithmetic number, because the mean of its divisors is an integer number (6012450).

Almost surely, 2^56891824 is an apocalyptic number.

It is an amenable number.

56891824 is an abundant number, since it is smaller than the sum of its proper divisors (63357176).

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

56891824 is a wasteful number, since it uses less digits than its factorization.

56891824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323268 (or 323262 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 56891824 is about 7542.6669023629. Note that the first 3 decimals coincide. The cubic root of 56891824 is about 384.6064996183.

The spelling of 56891824 in words is "fifty-six million, eight hundred ninety-one thousand, eight hundred twenty-four".