561570005 has 4 divisors (see below), whose sum is σ = 673884012. Its totient is φ = 449256000.

The previous prime is 561569971. The next prime is 561570017. The reversal of 561570005 is 500075165.

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 306880324 + 254689681 = 17518^2 + 15959^2 .

It is not a de Polignac number, because 561570005 - 2²⁶ = 494461141 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 561570005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56156996 + ... + 56157005.

It is an arithmetic number, because the mean of its divisors is an integer number (168471003).

Almost surely, 2^561570005 is an apocalyptic number.

It is an amenable number.

561570005 is a deficient number, since it is larger than the sum of its proper divisors (112314007).

561570005 is a wasteful number, since it uses less digits than its factorization.

561570005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112314006.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 561570005 is about 23697.4683246966. The cubic root of 561570005 is about 825.0266315248.

The spelling of 561570005 in words is "five hundred sixty-one million, five hundred seventy thousand, five".