25115393 has 4 divisors (see below), whose sum is σ = 25313280. Its totient is φ = 24917508.

The previous prime is 25115381. The next prime is 25115399. The reversal of 25115393 is 39351152.

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 25115393 - 2¹⁸ = 24853249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25115399) 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, 98753 + ... + 99006.

It is an arithmetic number, because the mean of its divisors is an integer number (6328320).

Almost surely, 2^25115393 is an apocalyptic number.

It is an amenable number.

25115393 is a deficient number, since it is larger than the sum of its proper divisors (197887).

25115393 is a wasteful number, since it uses less digits than its factorization.

25115393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197886.

The product of its digits is 4050, while the sum is 29.

The square root of 25115393 is about 5011.5260150976. The cubic root of 25115393 is about 292.8509649868.

The spelling of 25115393 in words is "twenty-five million, one hundred fifteen thousand, three hundred ninety-three".