22525331 has 2 divisors, whose sum is σ = 22525332. Its totient is φ = 22525330.

The previous prime is 22525301. The next prime is 22525337. The reversal of 22525331 is 13352522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22525331 - 2¹⁸ = 22263187 is a prime.

It is a super-2 number, since 2×22525331² = 1014781073319122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22525297 and 22525306.

It is not a weakly prime, because it can be changed into another prime (22525337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262665 + 11262666.

It is an arithmetic number, because the mean of its divisors is an integer number (11262666).

Almost surely, 2^22525331 is an apocalyptic number.

22525331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525331 is an equidigital number, since it uses as much as digits as its factorization.

22525331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 23.

The square root of 22525331 is about 4746.0858610017. The cubic root of 22525331 is about 282.4167128585.

Adding to 22525331 its reverse (13352522), we get a palindrome (35877853).

The spelling of 22525331 in words is "twenty-two million, five hundred twenty-five thousand, three hundred thirty-one".