56438479 has 4 divisors (see below), whose sum is σ = 56609320. Its totient is φ = 56267640.

The previous prime is 56438477. The next prime is 56438537. The reversal of 56438479 is 97483465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97483465 = 5 ⋅19496693.

It is a cyclic number.

It is not a de Polignac number, because 56438479 - 2¹ = 56438477 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 (56438471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84924 + ... + 85585.

It is an arithmetic number, because the mean of its divisors is an integer number (14152330).

Almost surely, 2^56438479 is an apocalyptic number.

56438479 is a deficient number, since it is larger than the sum of its proper divisors (170841).

56438479 is a wasteful number, since it uses less digits than its factorization.

56438479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170840.

The product of its digits is 725760, while the sum is 46.

The square root of 56438479 is about 7512.5547585359. The cubic root of 56438479 is about 383.5821894289.

The spelling of 56438479 in words is "fifty-six million, four hundred thirty-eight thousand, four hundred seventy-nine".