22531623 has 8 divisors (see below), whose sum is σ = 30067200. Its totient is φ = 15008568.

The previous prime is 22531609. The next prime is 22531627. The reversal of 22531623 is 32613522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22531623 - 2¹⁴ = 22515239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22531593 and 22531602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2538 + ... + 7176.

It is an arithmetic number, because the mean of its divisors is an integer number (3758400).

Almost surely, 2^22531623 is an apocalyptic number.

22531623 is a deficient number, since it is larger than the sum of its proper divisors (7535577).

22531623 is a wasteful number, since it uses less digits than its factorization.

22531623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261.

The product of its digits is 2160, while the sum is 24.

The square root of 22531623 is about 4746.7486767260. The cubic root of 22531623 is about 282.4430062276.

The spelling of 22531623 in words is "twenty-two million, five hundred thirty-one thousand, six hundred twenty-three".