56207006617 has 4 divisors (see below), whose sum is σ = 56274808420. Its totient is φ = 56139204816.

The previous prime is 56207006593. The next prime is 56207006623. The reversal of 56207006617 is 71660070265.

It is a happy number.

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 41343495561 + 14863511056 = 203331^2 + 121916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56207006617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56207006617.

It is not an unprimeable number, because it can be changed into a prime (56207006017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33899658 + ... + 33901315.

It is an arithmetic number, because the mean of its divisors is an integer number (14068702105).

Almost surely, 2^56207006617 is an apocalyptic number.

It is an amenable number.

56207006617 is a deficient number, since it is larger than the sum of its proper divisors (67801803).

56207006617 is an equidigital number, since it uses as much as digits as its factorization.

56207006617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67801802.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 56207006617 in words is "fifty-six billion, two hundred seven million, six thousand, six hundred seventeen".