25457497 has 8 divisors (see below), whose sum is σ = 27881280. Its totient is φ = 23100240.

The previous prime is 25457491. The next prime is 25457507. The reversal of 25457497 is 79475452.

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 25457497 - 2¹¹ = 25455449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25457491) 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, 15829 + ... + 17362.

It is an arithmetic number, because the mean of its divisors is an integer number (3485160).

Almost surely, 2^25457497 is an apocalyptic number.

It is an amenable number.

25457497 is a deficient number, since it is larger than the sum of its proper divisors (2423783).

25457497 is a wasteful number, since it uses less digits than its factorization.

25457497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33263.

The product of its digits is 352800, while the sum is 43.

The square root of 25457497 is about 5045.5422899823. The cubic root of 25457497 is about 294.1746421005.

The spelling of 25457497 in words is "twenty-five million, four hundred fifty-seven thousand, four hundred ninety-seven".