56197117 has 8 divisors (see below), whose sum is σ = 60754400. Its totient is φ = 51799824.

The previous prime is 56197091. The next prime is 56197129. The reversal of 56197117 is 71179165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56197117 - 2¹⁵ = 56164349 is a prime.

It is a super-2 number, since 2×56197117² = 6316231918223378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56197417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39267 + ... + 40672.

It is an arithmetic number, because the mean of its divisors is an integer number (7594300).

Almost surely, 2^56197117 is an apocalyptic number.

It is an amenable number.

56197117 is a deficient number, since it is larger than the sum of its proper divisors (4557283).

56197117 is a wasteful number, since it uses less digits than its factorization.

56197117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79995.

The product of its digits is 13230, while the sum is 37.

The square root of 56197117 is about 7496.4736376512. The cubic root of 56197117 is about 383.0346052397.

The spelling of 56197117 in words is "fifty-six million, one hundred ninety-seven thousand, one hundred seventeen".