56247955715117 has 4 divisors (see below), whose sum is σ = 56247973649916. Its totient is φ = 56247937780320.

The previous prime is 56247955715087. The next prime is 56247955715123. The reversal of 56247955715117 is 71151755974265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6838570184356 + 49409385530761 = 2615066^2 + 7029181^2 .

It is a cyclic number.

It is not a de Polignac number, because 56247955715117 - 2²⁸ = 56247687279661 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 (56247955715317) 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, 2890184 + ... + 10993137.

It is an arithmetic number, because the mean of its divisors is an integer number (14061993412479).

Almost surely, 2^{56247955715117} is an apocalyptic number.

It is an amenable number.

56247955715117 is a deficient number, since it is larger than the sum of its proper divisors (17934799).

56247955715117 is a wasteful number, since it uses less digits than its factorization.

56247955715117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934798.

The product of its digits is 92610000, while the sum is 65.

The spelling of 56247955715117 in words is "fifty-six trillion, two hundred forty-seven billion, nine hundred fifty-five million, seven hundred fifteen thousand, one hundred seventeen".