56774921 has 8 divisors (see below), whose sum is σ = 66394944. Its totient is φ = 47532240.

The previous prime is 56774911. The next prime is 56774989. The reversal of 56774921 is 12947765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56774921 - 2²² = 52580617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56774911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94010 + ... + 94611.

It is an arithmetic number, because the mean of its divisors is an integer number (8299368).

Almost surely, 2^56774921 is an apocalyptic number.

It is an amenable number.

56774921 is a deficient number, since it is larger than the sum of its proper divisors (9620023).

56774921 is a wasteful number, since it uses less digits than its factorization.

56774921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188671.

The product of its digits is 105840, while the sum is 41.

The square root of 56774921 is about 7534.9134699743. The cubic root of 56774921 is about 384.3428853773.

The spelling of 56774921 in words is "fifty-six million, seven hundred seventy-four thousand, nine hundred twenty-one".