22625553 has 4 divisors (see below), whose sum is σ = 30167408. Its totient is φ = 15083700.

The previous prime is 22625531. The next prime is 22625557. The reversal of 22625553 is 35552622.

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 not a de Polignac number, because 22625553 - 2⁹ = 22625041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22625553.

It is not an unprimeable number, because it can be changed into a prime (22625557) 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, 3770923 + ... + 3770928.

It is an arithmetic number, because the mean of its divisors is an integer number (7541852).

Almost surely, 2^22625553 is an apocalyptic number.

It is an amenable number.

22625553 is a deficient number, since it is larger than the sum of its proper divisors (7541855).

22625553 is an equidigital number, since it uses as much as digits as its factorization.

22625553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541854.

The product of its digits is 18000, while the sum is 30.

The square root of 22625553 is about 4756.6325273243. The cubic root of 22625553 is about 282.8349456031.

The spelling of 22625553 in words is "twenty-two million, six hundred twenty-five thousand, five hundred fifty-three".