25164253 has 2 divisors, whose sum is σ = 25164254. Its totient is φ = 25164252.

The previous prime is 25164229. The next prime is 25164259. The reversal of 25164253 is 35246152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 11819844 = 3653^2 + 3438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25164253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25164259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12582126 + 12582127.

It is an arithmetic number, because the mean of its divisors is an integer number (12582127).

Almost surely, 2^25164253 is an apocalyptic number.

It is an amenable number.

25164253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25164253 is an equidigital number, since it uses as much as digits as its factorization.

25164253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 25164253 is about 5016.3984092175. The cubic root of 25164253 is about 293.0407480593.

It can be divided in two parts, 251642 and 53, that added together give a triangular number (251695 = T₇₀₉).

The spelling of 25164253 in words is "twenty-five million, one hundred sixty-four thousand, two hundred fifty-three".