56506218365 has 16 divisors (see below), whose sum is σ = 67994401536. Its totient is φ = 45080443200.

The previous prime is 56506218341. The next prime is 56506218371. The reversal of 56506218365 is 56381260565.

56506218365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56506218365 - 2²⁴ = 56489441149 is a prime.

It is a super-3 number, since 3×56506218365³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6850934 + ... + 6859176.

It is an arithmetic number, because the mean of its divisors is an integer number (4249650096).

Almost surely, 2^56506218365 is an apocalyptic number.

It is an amenable number.

56506218365 is a deficient number, since it is larger than the sum of its proper divisors (11488183171).

56506218365 is a wasteful number, since it uses less digits than its factorization.

56506218365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 56506218365 in words is "fifty-six billion, five hundred six million, two hundred eighteen thousand, three hundred sixty-five".