22590023 has 2 divisors, whose sum is σ = 22590024. Its totient is φ = 22590022.

The previous prime is 22590019. The next prime is 22590037. The reversal of 22590023 is 32009522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22590023 - 2² = 22590019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22590013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11295011 + 11295012.

It is an arithmetic number, because the mean of its divisors is an integer number (11295012).

Almost surely, 2^22590023 is an apocalyptic number.

22590023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22590023 is an equidigital number, since it uses as much as digits as its factorization.

22590023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 22590023 is about 4752.8962749044. The cubic root of 22590023 is about 282.6868182414.

Adding to 22590023 its reverse (32009522), we get a palindrome (54599545).

The spelling of 22590023 in words is "twenty-two million, five hundred ninety thousand, twenty-three".