56217114691 has 8 divisors (see below), whose sum is σ = 56579451264. Its totient is φ = 55855511040.

The previous prime is 56217114631. The next prime is 56217114721. The reversal of 56217114691 is 19641171265.

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 56217114691 - 2²¹ = 56215017539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56217114631) 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, 28915 + ... + 336556.

It is an arithmetic number, because the mean of its divisors is an integer number (7072431408).

Almost surely, 2^56217114691 is an apocalyptic number.

56217114691 is a deficient number, since it is larger than the sum of its proper divisors (362336573).

56217114691 is a wasteful number, since it uses less digits than its factorization.

56217114691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366461.

The product of its digits is 90720, while the sum is 43.

The spelling of 56217114691 in words is "fifty-six billion, two hundred seventeen million, one hundred fourteen thousand, six hundred ninety-one".