56503469399 has 16 divisors (see below), whose sum is σ = 61000322880. Its totient is φ = 52028282880.

The previous prime is 56503469327. The next prime is 56503469443. The reversal of 56503469399 is 99396430565.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56503469399 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 (56503469699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10143287 + ... + 10148855.

It is an arithmetic number, because the mean of its divisors is an integer number (3812520180).

Almost surely, 2^56503469399 is an apocalyptic number.

56503469399 is a deficient number, since it is larger than the sum of its proper divisors (4496853481).

56503469399 is a wasteful number, since it uses less digits than its factorization.

56503469399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370.

The product of its (nonzero) digits is 23619600, while the sum is 59.

The spelling of 56503469399 in words is "fifty-six billion, five hundred three million, four hundred sixty-nine thousand, three hundred ninety-nine".