25198113 has 16 divisors (see below), whose sum is σ = 34273152. Its totient is φ = 16464000.

The previous prime is 25198111. The next prime is 25198163. The reversal of 25198113 is 31189152.

It is not a de Polignac number, because 25198113 - 2¹ = 25198111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25198111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59643 + ... + 60063.

It is an arithmetic number, because the mean of its divisors is an integer number (2142072).

Almost surely, 2^25198113 is an apocalyptic number.

It is an amenable number.

25198113 is a deficient number, since it is larger than the sum of its proper divisors (9075039).

25198113 is a wasteful number, since it uses less digits than its factorization.

25198113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its digits is 2160, while the sum is 30.

The square root of 25198113 is about 5019.7722059870. The cubic root of 25198113 is about 293.1721237410.

The spelling of 25198113 in words is "twenty-five million, one hundred ninety-eight thousand, one hundred thirteen".