22540251623 has 2 divisors, whose sum is σ = 22540251624. Its totient is φ = 22540251622.

The previous prime is 22540251611. The next prime is 22540251691. The reversal of 22540251623 is 32615204522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22540251623 - 2³² = 18245284327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22540251623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22540256623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270125811 + 11270125812.

It is an arithmetic number, because the mean of its divisors is an integer number (11270125812).

Almost surely, 2^22540251623 is an apocalyptic number.

22540251623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540251623 is an equidigital number, since it uses as much as digits as its factorization.

22540251623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 22540251623 in words is "twenty-two billion, five hundred forty million, two hundred fifty-one thousand, six hundred twenty-three".