22625031 has 32 divisors (see below), whose sum is σ = 36997632. Its totient is φ = 12101760.

The previous prime is 22625027. The next prime is 22625033. The reversal of 22625031 is 13052622.

It is not a de Polignac number, because 22625031 - 2² = 22625027 is a prime.

It is a super-2 number, since 2×22625031² = 1023784055501922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22624989 and 22625007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22625033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8721 + ... + 11013.

It is an arithmetic number, because the mean of its divisors is an integer number (1156176).

Almost surely, 2^22625031 is an apocalyptic number.

22625031 is a deficient number, since it is larger than the sum of its proper divisors (14372601).

22625031 is a wasteful number, since it uses less digits than its factorization.

22625031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

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

The square root of 22625031 is about 4756.5776562566. The cubic root of 22625031 is about 282.8327704670.

Adding to 22625031 its reverse (13052622), we get a palindrome (35677653).

The spelling of 22625031 in words is "twenty-two million, six hundred twenty-five thousand, thirty-one".