22975 has 6 divisors (see below), whose sum is σ = 28520. Its totient is φ = 18360.

The previous prime is 22973. The next prime is 22993. The reversal of 22975 is 57922.

It is not a de Polignac number, because 22975 - 2¹ = 22973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 919 = 22975 / (2 + 2 + 9 + 7 + 5).

22975 is a lucky number.

It is a plaindrome in base 9, base 12 and base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 435 + ... + 484.

2²²⁹⁷⁵ is an apocalyptic number.

22975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22975 is a deficient number, since it is larger than the sum of its proper divisors (5545).

22975 is an equidigital number, since it uses as much as digits as its factorization.

22975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 924 counting only the distinct ones).

The product of its digits is 1260, while the sum is 25.

The square root of 22975 is about 151.5750639122. The cubic root of 22975 is about 28.4283621971.

22975 divided by its sum of digits (25) gives a palindrome (919).

The spelling of 22975 in words is "twenty-two thousand, nine hundred seventy-five".