56481679 has 4 divisors (see below), whose sum is σ = 56518560. Its totient is φ = 56444800.

The previous prime is 56481671. The next prime is 56481697. The reversal of 56481679 is 97618465.

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

It is a cyclic number.

It is not a de Polignac number, because 56481679 - 2³ = 56481671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56481671) 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, 16039 + ... + 19240.

It is an arithmetic number, because the mean of its divisors is an integer number (14129640).

Almost surely, 2^56481679 is an apocalyptic number.

56481679 is a deficient number, since it is larger than the sum of its proper divisors (36881).

56481679 is a wasteful number, since it uses less digits than its factorization.

56481679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36880.

The product of its digits is 362880, while the sum is 46.

The square root of 56481679 is about 7515.4293955835. The cubic root of 56481679 is about 383.6800335755.

The spelling of 56481679 in words is "fifty-six million, four hundred eighty-one thousand, six hundred seventy-nine".