56857222297 has 4 divisors (see below), whose sum is σ = 56908771200. Its totient is φ = 56805673396.

The previous prime is 56857222249. The next prime is 56857222309. The reversal of 56857222297 is 79222275865.

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 56857222297 - 2¹⁹ = 56856698009 is a prime.

It is a super-3 number, since 3×56857222297³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56857220297) 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, 25772797 + ... + 25775002.

It is an arithmetic number, because the mean of its divisors is an integer number (14227192800).

Almost surely, 2^56857222297 is an apocalyptic number.

It is an amenable number.

56857222297 is a deficient number, since it is larger than the sum of its proper divisors (51548903).

56857222297 is a wasteful number, since it uses less digits than its factorization.

56857222297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51548902.

The product of its digits is 8467200, while the sum is 55.

The spelling of 56857222297 in words is "fifty-six billion, eight hundred fifty-seven million, two hundred twenty-two thousand, two hundred ninety-seven".