22575 has 24 divisors (see below), whose sum is σ = 43648. Its totient is φ = 10080.

The previous prime is 22573. The next prime is 22613. The reversal of 22575 is 57522.

22575 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 22575 - 2¹ = 22573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504 + ... + 546.

2²²⁵⁷⁵ is an apocalyptic number.

22575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22575 is a deficient number, since it is larger than the sum of its proper divisors (21073).

22575 is a wasteful number, since it uses less digits than its factorization.

22575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 58 counting only the distinct ones).

The product of its digits is 700, while the sum is 21.

The square root of 22575 is about 150.2497920132. The cubic root of 22575 is about 28.2624139453.

It can be divided in two parts, 225 and 75, that added together give a triangular number (300 = T₂₄).

The spelling of 22575 in words is "twenty-two thousand, five hundred seventy-five".