56189257305 has 16 divisors (see below), whose sum is σ = 90278979840. Its totient is φ = 29842214528.

The previous prime is 56189257303. The next prime is 56189257309. The reversal of 56189257305 is 50375298165.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56189257305 - 2¹ = 56189257303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56189257303) 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, 7833132 + ... + 7840301.

It is an arithmetic number, because the mean of its divisors is an integer number (5642436240).

Almost surely, 2^56189257305 is an apocalyptic number.

It is an amenable number.

56189257305 is a deficient number, since it is larger than the sum of its proper divisors (34089722535).

56189257305 is a wasteful number, since it uses less digits than its factorization.

56189257305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15673680.

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 56189257305 in words is "fifty-six billion, one hundred eighty-nine million, two hundred fifty-seven thousand, three hundred five".