56464639 has 8 divisors (see below), whose sum is σ = 70397568. Its totient is φ = 43998360.

The previous prime is 56464591. The next prime is 56464673. The reversal of 56464639 is 93646465.

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

It is not a de Polignac number, because 56464639 - 2⁹ = 56464127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56464595 and 56464604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56464679) 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, 366577 + ... + 366730.

It is an arithmetic number, because the mean of its divisors is an integer number (8799696).

Almost surely, 2^56464639 is an apocalyptic number.

56464639 is a deficient number, since it is larger than the sum of its proper divisors (13932929).

56464639 is a wasteful number, since it uses less digits than its factorization.

56464639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733325.

The product of its digits is 466560, while the sum is 43.

The square root of 56464639 is about 7514.2956423074. The cubic root of 56464639 is about 383.6414454558.

The spelling of 56464639 in words is "fifty-six million, four hundred sixty-four thousand, six hundred thirty-nine".