56327721 has 8 divisors (see below), whose sum is σ = 76850400. Its totient is φ = 36678432.

The previous prime is 56327717. The next prime is 56327729. The reversal of 56327721 is 12772365.

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

It is not a de Polignac number, because 56327721 - 2² = 56327717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56327729) 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, 218196 + ... + 218453.

It is an arithmetic number, because the mean of its divisors is an integer number (9606300).

Almost surely, 2^56327721 is an apocalyptic number.

It is an amenable number.

56327721 is a deficient number, since it is larger than the sum of its proper divisors (20522679).

56327721 is a wasteful number, since it uses less digits than its factorization.

56327721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436695.

The product of its digits is 17640, while the sum is 33.

The square root of 56327721 is about 7505.1796114417. The cubic root of 56327721 is about 383.3311041248.

The spelling of 56327721 in words is "fifty-six million, three hundred twenty-seven thousand, seven hundred twenty-one".