22531133545 has 32 divisors (see below), whose sum is σ = 27938167200. Its totient is φ = 17435658240.

The previous prime is 22531133533. The next prime is 22531133551. The reversal of 22531133545 is 54533113522.

It can be written as a sum of positive squares in 16 ways, for example, as 3277906009 + 19253227536 = 57253^2 + 138756^2 .

It is not a de Polignac number, because 22531133545 - 2²⁵ = 22497579113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22531133545.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8837931 + ... + 8840479.

It is an arithmetic number, because the mean of its divisors is an integer number (873067725).

Almost surely, 2^22531133545 is an apocalyptic number.

It is an amenable number.

22531133545 is a deficient number, since it is larger than the sum of its proper divisors (5407033655).

22531133545 is a wasteful number, since it uses less digits than its factorization.

22531133545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its digits is 54000, while the sum is 34.

The spelling of 22531133545 in words is "twenty-two billion, five hundred thirty-one million, one hundred thirty-three thousand, five hundred forty-five".