25465253 has 4 divisors (see below), whose sum is σ = 27780288. Its totient is φ = 23150220.

The previous prime is 25465249. The next prime is 25465309. The reversal of 25465253 is 35256452.

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 25465253 - 2² = 25465249 is a prime.

It is a super-2 number, since 2×25465253² = 1296958220708018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25465553) 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, 1157501 + ... + 1157522.

It is an arithmetic number, because the mean of its divisors is an integer number (6945072).

Almost surely, 2^25465253 is an apocalyptic number.

It is an amenable number.

25465253 is a deficient number, since it is larger than the sum of its proper divisors (2315035).

25465253 is a wasteful number, since it uses less digits than its factorization.

25465253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315034.

The product of its digits is 36000, while the sum is 32.

The square root of 25465253 is about 5046.3108306960. The cubic root of 25465253 is about 294.2045139408.

The spelling of 25465253 in words is "twenty-five million, four hundred sixty-five thousand, two hundred fifty-three".