56631574 has 4 divisors (see below), whose sum is σ = 84947364. Its totient is φ = 28315786.

The previous prime is 56631557. The next prime is 56631581. The reversal of 56631574 is 47513665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47513665 = 5 ⋅9502733.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14157892 + ... + 14157895.

It is an arithmetic number, because the mean of its divisors is an integer number (21236841).

Almost surely, 2^56631574 is an apocalyptic number.

56631574 is a deficient number, since it is larger than the sum of its proper divisors (28315790).

56631574 is a wasteful number, since it uses less digits than its factorization.

56631574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28315789.

The product of its digits is 75600, while the sum is 37.

The square root of 56631574 is about 7525.3952720106. The cubic root of 56631574 is about 384.0191459999.

The spelling of 56631574 in words is "fifty-six million, six hundred thirty-one thousand, five hundred seventy-four".