25389253 has 2 divisors, whose sum is σ = 25389254. Its totient is φ = 25389252.

The previous prime is 25389233. The next prime is 25389271. The reversal of 25389253 is 35298352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22676644 + 2712609 = 4762^2 + 1647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25389253 is a prime.

It is a super-2 number, since 2×25389253² = 1289228335796018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25389233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12694626 + 12694627.

It is an arithmetic number, because the mean of its divisors is an integer number (12694627).

Almost surely, 2^25389253 is an apocalyptic number.

It is an amenable number.

25389253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25389253 is an equidigital number, since it uses as much as digits as its factorization.

25389253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 25389253 is about 5038.7749503227. The cubic root of 25389253 is about 293.9115418698.

Subtracting 25389253 from its reverse (35298352), we obtain a palindrome (9909099).

The spelling of 25389253 in words is "twenty-five million, three hundred eighty-nine thousand, two hundred fifty-three".