25112399 has 4 divisors (see below), whose sum is σ = 27044136. Its totient is φ = 23180664.

The previous prime is 25112393. The next prime is 25112413. The reversal of 25112399 is 99321152.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25112399 - 2¹⁶ = 25046863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25112393) 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, 965849 + ... + 965874.

It is an arithmetic number, because the mean of its divisors is an integer number (6761034).

Almost surely, 2^25112399 is an apocalyptic number.

25112399 is a deficient number, since it is larger than the sum of its proper divisors (1931737).

25112399 is a wasteful number, since it uses less digits than its factorization.

25112399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931736.

The product of its digits is 4860, while the sum is 32.

The square root of 25112399 is about 5011.2272947852. The cubic root of 25112399 is about 292.8393276265.

The spelling of 25112399 in words is "twenty-five million, one hundred twelve thousand, three hundred ninety-nine".