56919808 has 144 divisors (see below), whose sum is σ = 139073760. Its totient is φ = 22937600.

The previous prime is 56919799. The next prime is 56919829. The reversal of 56919808 is 80891965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388268 + ... + 1388308.

It is an arithmetic number, because the mean of its divisors is an integer number (965790).

Almost surely, 2^56919808 is an apocalyptic number.

56919808 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56919808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69536880).

56919808 is an abundant number, since it is smaller than the sum of its proper divisors (82153952).

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

56919808 is a wasteful number, since it uses less digits than its factorization.

56919808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 56919808 is about 7544.5217210901. The cubic root of 56919808 is about 384.6695494753.

The spelling of 56919808 in words is "fifty-six million, nine hundred nineteen thousand, eight hundred eight".