56556363361 has 4 divisors (see below), whose sum is σ = 56559667392. Its totient is φ = 56553059332.

The previous prime is 56556363349. The next prime is 56556363533. The reversal of 56556363361 is 16336365565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56556363361 - 2⁷ = 56556363233 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56556303361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626205 + ... + 1660618.

It is an arithmetic number, because the mean of its divisors is an integer number (14139916848).

Almost surely, 2^56556363361 is an apocalyptic number.

It is an amenable number.

56556363361 is a deficient number, since it is larger than the sum of its proper divisors (3304031).

56556363361 is a wasteful number, since it uses less digits than its factorization.

56556363361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304030.

The product of its digits is 4374000, while the sum is 49.

The spelling of 56556363361 in words is "fifty-six billion, five hundred fifty-six million, three hundred sixty-three thousand, three hundred sixty-one".