8365560457 has 4 divisors (see below), whose sum is σ = 8366053140. Its totient is φ = 8365067776.

The previous prime is 8365560389. The next prime is 8365560479. The reversal of 8365560457 is 7540655638.

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 4022223241 + 4343337216 = 63421^2 + 65904^2 .

It is a cyclic number.

It is not a de Polignac number, because 8365560457 - 2²⁷ = 8231342729 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 8365560457.

It is not an unprimeable number, because it can be changed into a prime (8365566457) 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, 219928 + ... + 255145.

It is an arithmetic number, because the mean of its divisors is an integer number (2091513285).

Almost surely, 2^8365560457 is an apocalyptic number.

It is an amenable number.

8365560457 is a deficient number, since it is larger than the sum of its proper divisors (492683).

8365560457 is a wasteful number, since it uses less digits than its factorization.

8365560457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492682.

The product of its (nonzero) digits is 3024000, while the sum is 49.

The square root of 8365560457 is about 91463.4378153369. The cubic root of 8365560457 is about 2030.0107950763.

The spelling of 8365560457 in words is "eight billion, three hundred sixty-five million, five hundred sixty thousand, four hundred fifty-seven".