25213369 has 2 divisors, whose sum is σ = 25213370. Its totient is φ = 25213368.

The previous prime is 25213301. The next prime is 25213381. The reversal of 25213369 is 96331252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 4782969 = 4520^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 25213369 - 2⁷ = 25213241 is a prime.

It is a super-2 number, since 2×25213369² = 1271427952660322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25213369.

It is not a weakly prime, because it can be changed into another prime (25213469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12606684 + 12606685.

It is an arithmetic number, because the mean of its divisors is an integer number (12606685).

Almost surely, 2^25213369 is an apocalyptic number.

It is an amenable number.

25213369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25213369 is an equidigital number, since it uses as much as digits as its factorization.

25213369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 25213369 is about 5021.2915669178. The cubic root of 25213369 is about 293.2312780592.

The spelling of 25213369 in words is "twenty-five million, two hundred thirteen thousand, three hundred sixty-nine".