56575471765 has 8 divisors (see below), whose sum is σ = 67893034968. Its totient is φ = 45258731520.

The previous prime is 56575471723. The next prime is 56575471817. The reversal of 56575471765 is 56717457565.

It can be written as a sum of positive squares in 4 ways, for example, as 7111042929 + 49464428836 = 84327^2 + 222406^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-56575471765 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42756 + ... + 339085.

It is an arithmetic number, because the mean of its divisors is an integer number (8486629371).

Almost surely, 2^56575471765 is an apocalyptic number.

It is an amenable number.

56575471765 is a deficient number, since it is larger than the sum of its proper divisors (11317563203).

56575471765 is a wasteful number, since it uses less digits than its factorization.

56575471765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411479.

The product of its digits is 30870000, while the sum is 58.

The spelling of 56575471765 in words is "fifty-six billion, five hundred seventy-five million, four hundred seventy-one thousand, seven hundred sixty-five".