56135152317 has 4 divisors (see below), whose sum is σ = 74846869760. Its totient is φ = 37423434876.

The previous prime is 56135152219. The next prime is 56135152369. The reversal of 56135152317 is 71325153165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56135152317 - 2⁷ = 56135152189 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 (56135152417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9355858717 + ... + 9355858722.

It is an arithmetic number, because the mean of its divisors is an integer number (18711717440).

Almost surely, 2^56135152317 is an apocalyptic number.

It is an amenable number.

56135152317 is a deficient number, since it is larger than the sum of its proper divisors (18711717443).

56135152317 is a wasteful number, since it uses less digits than its factorization.

56135152317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711717442.

The product of its digits is 94500, while the sum is 39.

The spelling of 56135152317 in words is "fifty-six billion, one hundred thirty-five million, one hundred fifty-two thousand, three hundred seventeen".