56285285617 has 4 divisors (see below), whose sum is σ = 61402129776. Its totient is φ = 51168441460.

The previous prime is 56285285611. The next prime is 56285285657. The reversal of 56285285617 is 71658258265.

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 56285285617 - 2⁷ = 56285285489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56285285611) 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, 2558422063 + ... + 2558422084.

It is an arithmetic number, because the mean of its divisors is an integer number (15350532444).

Almost surely, 2^56285285617 is an apocalyptic number.

It is an amenable number.

56285285617 is a deficient number, since it is larger than the sum of its proper divisors (5116844159).

56285285617 is a wasteful number, since it uses less digits than its factorization.

56285285617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116844158.

The product of its digits is 8064000, while the sum is 55.

The spelling of 56285285617 in words is "fifty-six billion, two hundred eighty-five million, two hundred eighty-five thousand, six hundred seventeen".