56477574 has 48 divisors (see below), whose sum is σ = 128593920. Its totient is φ = 18574920.

The previous prime is 56477527. The next prime is 56477591. The reversal of 56477574 is 47577465.

56477574 is a `hidden beast` number, since 5 + 6 + 4 + 77 + 574 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37659 + ... + 39129.

It is an arithmetic number, because the mean of its divisors is an integer number (2679040).

Almost surely, 2^56477574 is an apocalyptic number.

56477574 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56477574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64296960).

56477574 is an abundant number, since it is smaller than the sum of its proper divisors (72116346).

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

56477574 is a wasteful number, since it uses less digits than its factorization.

56477574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1555 counting only the distinct ones).

The product of its digits is 823200, while the sum is 45.

The square root of 56477574 is about 7515.1562858000. The cubic root of 56477574 is about 383.6707382622.

The spelling of 56477574 in words is "fifty-six million, four hundred seventy-seven thousand, five hundred seventy-four".