561712569 has 16 divisors (see below), whose sum is σ = 836039424. Its totient is φ = 332514000.

The previous prime is 561712531. The next prime is 561712607. The reversal of 561712569 is 965217165.

It is an interprime number because it is at equal distance from previous prime (561712531) and next prime (561712607).

It is not a de Polignac number, because 561712569 - 2⁷ = 561712441 is a prime.

It is a super-2 number, since 2×561712569² = 631042020345159522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 561712569.

It is not an unprimeable number, because it can be changed into a prime (561712519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196507 + ... + 199344.

It is an arithmetic number, because the mean of its divisors is an integer number (52252464).

Almost surely, 2^561712569 is an apocalyptic number.

It is an amenable number.

561712569 is a deficient number, since it is larger than the sum of its proper divisors (274326855).

561712569 is a wasteful number, since it uses less digits than its factorization.

561712569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395908.

The product of its digits is 113400, while the sum is 42.

The square root of 561712569 is about 23700.4761344577. The cubic root of 561712569 is about 825.0964412510.

The spelling of 561712569 in words is "five hundred sixty-one million, seven hundred twelve thousand, five hundred sixty-nine".