25348257 has 24 divisors (see below), whose sum is σ = 40704768. Its totient is φ = 15069600.

The previous prime is 25348249. The next prime is 25348289. The reversal of 25348257 is 75284352.

It is not a de Polignac number, because 25348257 - 2³ = 25348249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25348217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2832 + ... + 7662.

It is an arithmetic number, because the mean of its divisors is an integer number (1696032).

Almost surely, 2^25348257 is an apocalyptic number.

It is an amenable number.

25348257 is a deficient number, since it is larger than the sum of its proper divisors (15356511).

25348257 is a wasteful number, since it uses less digits than its factorization.

25348257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901 (or 4898 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25348257 is about 5034.7052545308. The cubic root of 25348257 is about 293.7532637633.

The spelling of 25348257 in words is "twenty-five million, three hundred forty-eight thousand, two hundred fifty-seven".