25072453 has 4 divisors (see below), whose sum is σ = 28654240. Its totient is φ = 21490668.

The previous prime is 25072451. The next prime is 25072469. The reversal of 25072453 is 35427052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25072453 - 2¹ = 25072451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25072451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790883 + ... + 1790896.

It is an arithmetic number, because the mean of its divisors is an integer number (7163560).

Almost surely, 2^25072453 is an apocalyptic number.

It is an amenable number.

25072453 is a deficient number, since it is larger than the sum of its proper divisors (3581787).

25072453 is an equidigital number, since it uses as much as digits as its factorization.

25072453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581786.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25072453 is about 5007.2400581558. The cubic root of 25072453 is about 292.6839731903.

The spelling of 25072453 in words is "twenty-five million, seventy-two thousand, four hundred fifty-three".