56620612193 has 4 divisors (see below), whose sum is σ = 56621825988. Its totient is φ = 56619398400.

The previous prime is 56620612183. The next prime is 56620612201. The reversal of 56620612193 is 39121602665.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43544003584 + 13076608609 = 208672^2 + 114353^2 .

It is a cyclic number.

It is not a de Polignac number, because 56620612193 - 2²² = 56616417889 is a prime.

It is a super-2 number, since 2×56620612193² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56620612193.

It is not an unprimeable number, because it can be changed into a prime (56620612133) 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, 534008 + ... + 631193.

It is an arithmetic number, because the mean of its divisors is an integer number (14155456497).

Almost surely, 2^56620612193 is an apocalyptic number.

It is an amenable number.

56620612193 is a deficient number, since it is larger than the sum of its proper divisors (1213795).

56620612193 is a wasteful number, since it uses less digits than its factorization.

56620612193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213794.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 56620612193 in words is "fifty-six billion, six hundred twenty million, six hundred twelve thousand, one hundred ninety-three".