56500813319 has 4 divisors (see below), whose sum is σ = 56511894840. Its totient is φ = 56489731800.

The previous prime is 56500813309. The next prime is 56500813337. The reversal of 56500813319 is 91331800565.

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

It is a cyclic number.

It is not a de Polignac number, because 56500813319 - 2¹² = 56500809223 is a prime.

It is a super-2 number, since 2×56500813319² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56500813309) 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, 5533109 + ... + 5543310.

It is an arithmetic number, because the mean of its divisors is an integer number (14127973710).

Almost surely, 2^56500813319 is an apocalyptic number.

56500813319 is a deficient number, since it is larger than the sum of its proper divisors (11081521).

56500813319 is a wasteful number, since it uses less digits than its factorization.

56500813319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11081520.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 56500813319 in words is "fifty-six billion, five hundred million, eight hundred thirteen thousand, three hundred nineteen".