22531240655 has 32 divisors (see below), whose sum is σ = 34531273728. Its totient is φ = 13702867200.

The previous prime is 22531240651. The next prime is 22531240679. The reversal of 22531240655 is 55604213522.

It is not a de Polignac number, because 22531240655 - 2² = 22531240651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531240651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697907 + ... + 729476.

It is an arithmetic number, because the mean of its divisors is an integer number (1079102304).

Almost surely, 2^22531240655 is an apocalyptic number.

22531240655 is a deficient number, since it is larger than the sum of its proper divisors (12000033073).

22531240655 is a wasteful number, since it uses less digits than its factorization.

22531240655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427447.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 22531240655 in words is "twenty-two billion, five hundred thirty-one million, two hundred forty thousand, six hundred fifty-five".