22540544023 has 4 divisors (see below), whose sum is σ = 22540850640. Its totient is φ = 22540237408.

The previous prime is 22540544017. The next prime is 22540544051. The reversal of 22540544023 is 32044504522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22540544023 - 2⁹ = 22540543511 is a prime.

It is a super-2 number, since 2×22540544023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540544063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30111 + ... + 214447.

It is an arithmetic number, because the mean of its divisors is an integer number (5635212660).

Almost surely, 2^22540544023 is an apocalyptic number.

22540544023 is a deficient number, since it is larger than the sum of its proper divisors (306617).

22540544023 is a wasteful number, since it uses less digits than its factorization.

22540544023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306616.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 22540544023 in words is "twenty-two billion, five hundred forty million, five hundred forty-four thousand, twenty-three".