56473664 has 56 divisors (see below), whose sum is σ = 122041920. Its totient is φ = 25772544.

The previous prime is 56473657. The next prime is 56473777. The reversal of 56473664 is 46637465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85367 + ... + 86025.

It is an arithmetic number, because the mean of its divisors is an integer number (2179320).

Almost surely, 2^56473664 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 56473664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61020960).

56473664 is an abundant number, since it is smaller than the sum of its proper divisors (65568256).

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

56473664 is a wasteful number, since it uses less digits than its factorization.

56473664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 777 counting only the distinct ones).

The product of its digits is 362880, while the sum is 41.

The square root of 56473664 is about 7514.8961403335. The cubic root of 56473664 is about 383.6618840858.

The spelling of 56473664 in words is "fifty-six million, four hundred seventy-three thousand, six hundred sixty-four".