56719256403 has 4 divisors (see below), whose sum is σ = 75625675208. Its totient is φ = 37812837600.

The previous prime is 56719256387. The next prime is 56719256443. The reversal of 56719256403 is 30465291765.

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

It is not a de Polignac number, because 56719256403 - 2⁴ = 56719256387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56719256443) 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, 9453209398 + ... + 9453209403.

It is an arithmetic number, because the mean of its divisors is an integer number (18906418802).

Almost surely, 2^56719256403 is an apocalyptic number.

56719256403 is a deficient number, since it is larger than the sum of its proper divisors (18906418805).

56719256403 is a wasteful number, since it uses less digits than its factorization.

56719256403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18906418804.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 56719256403 in words is "fifty-six billion, seven hundred nineteen million, two hundred fifty-six thousand, four hundred three".