25242453 has 6 divisors (see below), whose sum is σ = 36461334. Its totient is φ = 16828296.

The previous prime is 25242449. The next prime is 25242479. The reversal of 25242453 is 35424252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 412164 = 4983^2 + 642^2 .

It is not a de Polignac number, because 25242453 - 2² = 25242449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242443) 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 in 5 ways as a sum of consecutive naturals, for example, 1402350 + ... + 1402367.

It is an arithmetic number, because the mean of its divisors is an integer number (6076889).

Almost surely, 2^25242453 is an apocalyptic number.

It is an amenable number.

25242453 is a deficient number, since it is larger than the sum of its proper divisors (11218881).

25242453 is a wasteful number, since it uses less digits than its factorization.

25242453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804723 (or 2804720 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25242453 is about 5024.1867998712. The cubic root of 25242453 is about 293.3439836296.

The spelling of 25242453 in words is "twenty-five million, two hundred forty-two thousand, four hundred fifty-three".