56431197 has 24 divisors (see below), whose sum is σ = 86147360. Its totient is φ = 35497440.

The previous prime is 56431189. The next prime is 56431223. The reversal of 56431197 is 79113465.

56431197 is a `hidden beast` number, since 5 + 643 + 1 + 1 + 9 + 7 = 666.

It is not a de Polignac number, because 56431197 - 2³ = 56431189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56431147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56103 + ... + 57099.

Almost surely, 2^56431197 is an apocalyptic number.

56431197 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

56431197 is a deficient number, since it is larger than the sum of its proper divisors (29716163).

56431197 is a wasteful number, since it uses less digits than its factorization.

56431197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1350 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 56431197 is about 7512.0700875325. The cubic root of 56431197 is about 383.5656914315.

The spelling of 56431197 in words is "fifty-six million, four hundred thirty-one thousand, one hundred ninety-seven".