56913000 has 128 divisors (see below), whose sum is σ = 181059840. Its totient is φ = 14880000.

The previous prime is 56912983. The next prime is 56913007. The reversal of 56913000 is 31965.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (56913007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182845 + ... + 183155.

It is an arithmetic number, because the mean of its divisors is an integer number (1414530).

Almost surely, 2^56913000 is an apocalyptic number.

56913000 is a gapful number since it is divisible by the number (50) 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 56913000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90529920).

56913000 is an abundant number, since it is smaller than the sum of its proper divisors (124146840).

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

56913000 is a wasteful number, since it uses less digits than its factorization.

56913000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 56913000 is about 7544.0705192886. The cubic root of 56913000 is about 384.6542124904.

Adding to 56913000 its reverse (31965), we get a palindrome (56944965).

The spelling of 56913000 in words is "fifty-six million, nine hundred thirteen thousand".