56813479 has 4 divisors (see below), whose sum is σ = 56956984. Its totient is φ = 56669976.

The previous prime is 56813447. The next prime is 56813501. The reversal of 56813479 is 97431865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97431865 = 5 ⋅19486373.

It is a cyclic number.

It is not a de Polignac number, because 56813479 - 2⁵ = 56813447 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 (56813429) 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, 71157 + ... + 71950.

It is an arithmetic number, because the mean of its divisors is an integer number (14239246).

Almost surely, 2^56813479 is an apocalyptic number.

56813479 is a deficient number, since it is larger than the sum of its proper divisors (143505).

56813479 is a wasteful number, since it uses less digits than its factorization.

56813479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143504.

The product of its digits is 181440, while the sum is 43.

The square root of 56813479 is about 7537.4716583215. The cubic root of 56813479 is about 384.4298729601.

The spelling of 56813479 in words is "fifty-six million, eight hundred thirteen thousand, four hundred seventy-nine".