25257395 has 8 divisors (see below), whose sum is σ = 30335856. Its totient is φ = 20187936.

The previous prime is 25257391. The next prime is 25257409. The reversal of 25257395 is 59375252.

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 25257395 - 2² = 25257391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25257391) 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, 9869 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (3791982).

Almost surely, 2^25257395 is an apocalyptic number.

25257395 is a deficient number, since it is larger than the sum of its proper divisors (5078461).

25257395 is a wasteful number, since it uses less digits than its factorization.

25257395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its digits is 94500, while the sum is 38.

The square root of 25257395 is about 5025.6735866946. The cubic root of 25257395 is about 293.4018528237.

It can be divided in two parts, 25257 and 395, that added together give a palindrome (25652).

The spelling of 25257395 in words is "twenty-five million, two hundred fifty-seven thousand, three hundred ninety-five".