25998901 has 16 divisors (see below), whose sum is σ = 28191744. Its totient is φ = 23912064.

The previous prime is 25998893. The next prime is 25998913. The reversal of 25998901 is 10989952.

It is not a de Polignac number, because 25998901 - 2³ = 25998893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25998971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116476 + ... + 116698.

It is an arithmetic number, because the mean of its divisors is an integer number (1761984).

Almost surely, 2^25998901 is an apocalyptic number.

It is an amenable number.

25998901 is a deficient number, since it is larger than the sum of its proper divisors (2192843).

25998901 is a wasteful number, since it uses less digits than its factorization.

25998901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 25998901 is about 5098.9117466377. The cubic root of 25998901 is about 296.2454327009.

The spelling of 25998901 in words is "twenty-five million, nine hundred ninety-eight thousand, nine hundred one".