56974538 has 4 divisors (see below), whose sum is σ = 85461810. Its totient is φ = 28487268.

The previous prime is 56974537. The next prime is 56974579. The reversal of 56974538 is 83547965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83547965 = 5 ⋅16709593.

It can be written as a sum of positive squares in only one way, i.e., 39225169 + 17749369 = 6263^2 + 4213^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56974492 and 56974501.

It is not an unprimeable number, because it can be changed into a prime (56974537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14243633 + ... + 14243636.

Almost surely, 2^56974538 is an apocalyptic number.

56974538 is a deficient number, since it is larger than the sum of its proper divisors (28487272).

56974538 is a wasteful number, since it uses less digits than its factorization.

56974538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28487271.

The product of its digits is 907200, while the sum is 47.

The square root of 56974538 is about 7548.1479847708. The cubic root of 56974538 is about 384.7928001860.

The spelling of 56974538 in words is "fifty-six million, nine hundred seventy-four thousand, five hundred thirty-eight".