56439057 has 8 divisors (see below), whose sum is σ = 76853376. Its totient is φ = 36825392.

The previous prime is 56439041. The next prime is 56439059. The reversal of 56439057 is 75093465.

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

It is a cyclic number.

It is not a de Polignac number, because 56439057 - 2⁴ = 56439041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56439059) 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, 199998 + ... + 200279.

It is an arithmetic number, because the mean of its divisors is an integer number (9606672).

Almost surely, 2^56439057 is an apocalyptic number.

It is an amenable number.

56439057 is a deficient number, since it is larger than the sum of its proper divisors (20414319).

56439057 is a wasteful number, since it uses less digits than its factorization.

56439057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400327.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 56439057 is about 7512.5932273750. The cubic root of 56439057 is about 383.5834988768.

It can be divided in two parts, 564 and 39057, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 56439057 in words is "fifty-six million, four hundred thirty-nine thousand, fifty-seven".