56476439 has 4 divisors (see below), whose sum is σ = 56617680. Its totient is φ = 56335200.

The previous prime is 56476421. The next prime is 56476447. The reversal of 56476439 is 93467465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56476439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56476439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56476489) 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, 70019 + ... + 70820.

It is an arithmetic number, because the mean of its divisors is an integer number (14154420).

Almost surely, 2^56476439 is an apocalyptic number.

56476439 is a deficient number, since it is larger than the sum of its proper divisors (141241).

56476439 is a wasteful number, since it uses less digits than its factorization.

56476439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141240.

The product of its digits is 544320, while the sum is 44.

The square root of 56476439 is about 7515.0807713557. The cubic root of 56476439 is about 383.6681681022.

The spelling of 56476439 in words is "fifty-six million, four hundred seventy-six thousand, four hundred thirty-nine".