22504745531 has 16 divisors (see below), whose sum is σ = 24023983104. Its totient is φ = 21032145024.

The previous prime is 22504745519. The next prime is 22504745609. The reversal of 22504745531 is 13554740522.

It is not a de Polignac number, because 22504745531 - 2²⁶ = 22437636667 is a prime.

It is a super-2 number, since 2×22504745531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22504741531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623480 + ... + 658586.

It is an arithmetic number, because the mean of its divisors is an integer number (1501498944).

Almost surely, 2^22504745531 is an apocalyptic number.

22504745531 is a deficient number, since it is larger than the sum of its proper divisors (1519237573).

22504745531 is a wasteful number, since it uses less digits than its factorization.

22504745531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35770.

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 22504745531 in words is "twenty-two billion, five hundred four million, seven hundred forty-five thousand, five hundred thirty-one".