22540344531 has 4 divisors (see below), whose sum is σ = 30053792712. Its totient is φ = 15026896352.

The previous prime is 22540344503. The next prime is 22540344581. The reversal of 22540344531 is 13544304522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22540344531 - 2⁶ = 22540344467 is a prime.

It is a super-2 number, since 2×22540344531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22540344492 and 22540344501.

It is not an unprimeable number, because it can be changed into a prime (22540344581) 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 3 ways as a sum of consecutive naturals, for example, 3756724086 + ... + 3756724091.

It is an arithmetic number, because the mean of its divisors is an integer number (7513448178).

Almost surely, 2^22540344531 is an apocalyptic number.

22540344531 is a deficient number, since it is larger than the sum of its proper divisors (7513448181).

22540344531 is an equidigital number, since it uses as much as digits as its factorization.

22540344531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513448180.

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 22540344531 in words is "twenty-two billion, five hundred forty million, three hundred forty-four thousand, five hundred thirty-one".