56460639 has 4 divisors (see below), whose sum is σ = 75280856. Its totient is φ = 37640424.

The previous prime is 56460629. The next prime is 56460659. The reversal of 56460639 is 93606465.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56460639 - 2⁷ = 56460511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56460597 and 56460606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56460629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9410104 + ... + 9410109.

It is an arithmetic number, because the mean of its divisors is an integer number (18820214).

Almost surely, 2^56460639 is an apocalyptic number.

56460639 is a deficient number, since it is larger than the sum of its proper divisors (18820217).

56460639 is a wasteful number, since it uses less digits than its factorization.

56460639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18820216.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 56460639 is about 7514.0294782493. The cubic root of 56460639 is about 383.6323860867.

The spelling of 56460639 in words is "fifty-six million, four hundred sixty thousand, six hundred thirty-nine".