56575471717 has 4 divisors (see below), whose sum is σ = 56644215520. Its totient is φ = 56506727916.

The previous prime is 56575471709. The next prime is 56575471723. The reversal of 56575471717 is 71717457565.

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 a cyclic number.

It is not a de Polignac number, because 56575471717 - 2³ = 56575471709 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 (56575471217) 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, 34370667 + ... + 34372312.

It is an arithmetic number, because the mean of its divisors is an integer number (14161053880).

Almost surely, 2^56575471717 is an apocalyptic number.

It is an amenable number.

56575471717 is a deficient number, since it is larger than the sum of its proper divisors (68743803).

56575471717 is an equidigital number, since it uses as much as digits as its factorization.

56575471717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68743802.

The product of its digits is 7203000, while the sum is 55.

The spelling of 56575471717 in words is "fifty-six billion, five hundred seventy-five million, four hundred seventy-one thousand, seven hundred seventeen".