22561075 has 12 divisors (see below), whose sum is σ = 29448760. Its totient is φ = 17098560.

The previous prime is 22561067. The next prime is 22561109. The reversal of 22561075 is 57016522.

It is not a de Polignac number, because 22561075 - 2³ = 22561067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23274 + ... + 24223.

Almost surely, 2^22561075 is an apocalyptic number.

22561075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22561075 is a deficient number, since it is larger than the sum of its proper divisors (6887685).

22561075 is a wasteful number, since it uses less digits than its factorization.

22561075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47526 (or 47521 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 22561075 is about 4749.8499976315. The cubic root of 22561075 is about 282.5660168893.

Adding to 22561075 its reverse (57016522), we get a palindrome (79577597).

The spelling of 22561075 in words is "twenty-two million, five hundred sixty-one thousand, seventy-five".