22510600561 has 8 divisors (see below), whose sum is σ = 22731512904. Its totient is φ = 22290508800.

The previous prime is 22510600547. The next prime is 22510600573. The reversal of 22510600561 is 16500601522.

It can be written as a sum of positive squares in 4 ways, for example, as 10812880225 + 11697720336 = 103985^2 + 108156^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22510600561 - 2⁵ = 22510600529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22510600501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149940 + ... + 259813.

It is an arithmetic number, because the mean of its divisors is an integer number (2841439113).

Almost surely, 2^22510600561 is an apocalyptic number.

It is an amenable number.

22510600561 is a deficient number, since it is larger than the sum of its proper divisors (220912343).

22510600561 is a wasteful number, since it uses less digits than its factorization.

22510600561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410291.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 22510600561 in words is "twenty-two billion, five hundred ten million, six hundred thousand, five hundred sixty-one".