22575915 has 48 divisors (see below), whose sum is σ = 43007328. Its totient is φ = 11321856.

The previous prime is 22575911. The next prime is 22575923. The reversal of 22575915 is 51957522.

It is not a de Polignac number, because 22575915 - 2² = 22575911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22575915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22575911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20109 + ... + 21201.

It is an arithmetic number, because the mean of its divisors is an integer number (895986).

Almost surely, 2^22575915 is an apocalyptic number.

22575915 is a deficient number, since it is larger than the sum of its proper divisors (20431413).

22575915 is a wasteful number, since it uses less digits than its factorization.

22575915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1118 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 22575915 is about 4751.4118954265. The cubic root of 22575915 is about 282.6279578004.

The spelling of 22575915 in words is "twenty-two million, five hundred seventy-five thousand, nine hundred fifteen".