56617255197 has 12 divisors (see below), whose sum is σ = 83520490560. Its totient is φ = 36941754888.

The previous prime is 56617255187. The next prime is 56617255213. The reversal of 56617255197 is 79155271665.

56617255197 is a `hidden beast` number, since 5 + 6 + 617 + 2 + 5 + 5 + 19 + 7 = 666.

56617255197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56617255197 - 2⁷ = 56617255069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56617255117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66923047 + ... + 66923892.

It is an arithmetic number, because the mean of its divisors is an integer number (6960040880).

Almost surely, 2^56617255197 is an apocalyptic number.

It is an amenable number.

56617255197 is a deficient number, since it is larger than the sum of its proper divisors (26903235363).

56617255197 is a wasteful number, since it uses less digits than its factorization.

56617255197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133846992 (or 133846989 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 54.

The spelling of 56617255197 in words is "fifty-six billion, six hundred seventeen million, two hundred fifty-five thousand, one hundred ninety-seven".