56409976503 has 48 divisors (see below), whose sum is σ = 85168262816. Its totient is φ = 37309870080.

The previous prime is 56409976459. The next prime is 56409976543. The reversal of 56409976503 is 30567990465.

56409976503 is a `hidden beast` number, since 5 + 6 + 40 + 9 + 97 + 6 + 503 = 666.

It is not a de Polignac number, because 56409976503 - 2⁶ = 56409976439 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 56409976503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56409976543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19743051 + ... + 19745907.

Almost surely, 2^56409976503 is an apocalyptic number.

56409976503 is a deficient number, since it is larger than the sum of its proper divisors (28758286313).

56409976503 is a wasteful number, since it uses less digits than its factorization.

56409976503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The spelling of 56409976503 in words is "fifty-six billion, four hundred nine million, nine hundred seventy-six thousand, five hundred three".