56217339 has 6 divisors (see below), whose sum is σ = 81202836. Its totient is φ = 37478220.

The previous prime is 56217323. The next prime is 56217349. The reversal of 56217339 is 93371265.

It is not a de Polignac number, because 56217339 - 2⁴ = 56217323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56217349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3123177 + ... + 3123194.

It is an arithmetic number, because the mean of its divisors is an integer number (13533806).

Almost surely, 2^56217339 is an apocalyptic number.

56217339 is a deficient number, since it is larger than the sum of its proper divisors (24985497).

56217339 is a wasteful number, since it uses less digits than its factorization.

56217339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246377 (or 6246374 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 56217339 is about 7497.8222838368. The cubic root of 56217339 is about 383.0805435209.

The spelling of 56217339 in words is "fifty-six million, two hundred seventeen thousand, three hundred thirty-nine".