22625013 has 4 divisors (see below), whose sum is σ = 30166688. Its totient is φ = 15083340.

The previous prime is 22625003. The next prime is 22625023. The reversal of 22625013 is 31052622.

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 an interprime number because it is at equal distance from previous prime (22625003) and next prime (22625023).

It is not a de Polignac number, because 22625013 - 2⁴ = 22624997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22625003) 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, 3770833 + ... + 3770838.

It is an arithmetic number, because the mean of its divisors is an integer number (7541672).

Almost surely, 2^22625013 is an apocalyptic number.

It is an amenable number.

22625013 is a deficient number, since it is larger than the sum of its proper divisors (7541675).

22625013 is an equidigital number, since it uses as much as digits as its factorization.

22625013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541674.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22625013 is about 4756.5757641396. The cubic root of 22625013 is about 282.8326954617.

Adding to 22625013 its reverse (31052622), we get a palindrome (53677635).

The spelling of 22625013 in words is "twenty-two million, six hundred twenty-five thousand, thirteen".