56617774 has 4 divisors (see below), whose sum is σ = 84926664. Its totient is φ = 28308886.

The previous prime is 56617753. The next prime is 56617787. The reversal of 56617774 is 47771665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47771665 = 5 ⋅9554333.

It is a self number, because there is not a number n which added to its sum of digits gives 56617774.

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, 14154442 + ... + 14154445.

It is an arithmetic number, because the mean of its divisors is an integer number (21231666).

Almost surely, 2^56617774 is an apocalyptic number.

56617774 is a deficient number, since it is larger than the sum of its proper divisors (28308890).

56617774 is a wasteful number, since it uses less digits than its factorization.

56617774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28308889.

The product of its digits is 246960, while the sum is 43.

The square root of 56617774 is about 7524.4783207874. The cubic root of 56617774 is about 383.9879508300.

The spelling of 56617774 in words is "fifty-six million, six hundred seventeen thousand, seven hundred seventy-four".