25452431 has 8 divisors (see below), whose sum is σ = 26681424. Its totient is φ = 24252480.

The previous prime is 25452403. The next prime is 25452437. The reversal of 25452431 is 13425452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25452431 - 2¹⁰ = 25451407 is a prime.

It is a super-2 number, since 2×25452431² = 1295652487619522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25452431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25452437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5456 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (3335178).

Almost surely, 2^25452431 is an apocalyptic number.

25452431 is a deficient number, since it is larger than the sum of its proper divisors (1228993).

25452431 is a wasteful number, since it uses less digits than its factorization.

25452431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14521.

The product of its digits is 4800, while the sum is 26.

The square root of 25452431 is about 5045.0402376988. The cubic root of 25452431 is about 294.1551273828.

Adding to 25452431 its reverse (13425452), we get a palindrome (38877883).

The spelling of 25452431 in words is "twenty-five million, four hundred fifty-two thousand, four hundred thirty-one".