25512453 has 6 divisors (see below), whose sum is σ = 36851334. Its totient is φ = 17008296.

The previous prime is 25512437. The next prime is 25512467. The reversal of 25512453 is 35421552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18948609 + 6563844 = 4353^2 + 2562^2 .

It is not a de Polignac number, because 25512453 - 2⁴ = 25512437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25512413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1417350 + ... + 1417367.

It is an arithmetic number, because the mean of its divisors is an integer number (6141889).

Almost surely, 2^25512453 is an apocalyptic number.

It is an amenable number.

25512453 is a deficient number, since it is larger than the sum of its proper divisors (11338881).

25512453 is a wasteful number, since it uses less digits than its factorization.

25512453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834723 (or 2834720 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 25512453 is about 5050.9853494145. The cubic root of 25512453 is about 294.3861716993.

Subtracting 25512453 from its reverse (35421552), we obtain a palindrome (9909099).

The spelling of 25512453 in words is "twenty-five million, five hundred twelve thousand, four hundred fifty-three".