56117100491 has 8 divisors (see below), whose sum is σ = 57194472960. Its totient is φ = 55049658048.

The previous prime is 56117100461. The next prime is 56117100497. The reversal of 56117100491 is 19400171165.

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 56117100491 - 2⁶ = 56117100427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56117100497) 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, 2471096 + ... + 2493701.

It is an arithmetic number, because the mean of its divisors is an integer number (7149309120).

Almost surely, 2^56117100491 is an apocalyptic number.

56117100491 is a deficient number, since it is larger than the sum of its proper divisors (1077372469).

56117100491 is a wasteful number, since it uses less digits than its factorization.

56117100491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965013.

The product of its (nonzero) digits is 7560, while the sum is 35.

The spelling of 56117100491 in words is "fifty-six billion, one hundred seventeen million, one hundred thousand, four hundred ninety-one".