22531564261 has 16 divisors (see below), whose sum is σ = 23980492800. Its totient is φ = 21096592128.

The previous prime is 22531564249. The next prime is 22531564271. The reversal of 22531564261 is 16246513522.

It is a cyclic number.

It is not a de Polignac number, because 22531564261 - 2¹¹ = 22531562213 is a prime.

It is a super-2 number, since 2×22531564261² (a number of 22 digits) contains 22 as substring.

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 22531564261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531564241) 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, 3703420 + ... + 3709498.

It is an arithmetic number, because the mean of its divisors is an integer number (1498780800).

Almost surely, 2^22531564261 is an apocalyptic number.

It is an amenable number.

22531564261 is a deficient number, since it is larger than the sum of its proper divisors (1448928539).

22531564261 is a wasteful number, since it uses less digits than its factorization.

22531564261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7188.

The product of its digits is 86400, while the sum is 37.

The spelling of 22531564261 in words is "twenty-two billion, five hundred thirty-one million, five hundred sixty-four thousand, two hundred sixty-one".