22525573 has 4 divisors (see below), whose sum is σ = 25743520. Its totient is φ = 19307628.

The previous prime is 22525567. The next prime is 22525577. The reversal of 22525573 is 37552522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22525573 - 2⁵ = 22525541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608963 + ... + 1608976.

It is an arithmetic number, because the mean of its divisors is an integer number (6435880).

Almost surely, 2^22525573 is an apocalyptic number.

It is an amenable number.

22525573 is a deficient number, since it is larger than the sum of its proper divisors (3217947).

22525573 is an equidigital number, since it uses as much as digits as its factorization.

22525573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217946.

The product of its digits is 21000, while the sum is 31.

The square root of 22525573 is about 4746.1113556258. Note that the first 3 decimals coincide. The cubic root of 22525573 is about 282.4177242324.

The spelling of 22525573 in words is "twenty-two million, five hundred twenty-five thousand, five hundred seventy-three".