25398369 has 12 divisors (see below), whose sum is σ = 37051092. Its totient is φ = 16764000.

The previous prime is 25398367. The next prime is 25398389. The reversal of 25398369 is 96389352.

It can be written as a sum of positive squares in 2 ways, for example, as 19580625 + 5817744 = 4425^2 + 2412^2 .

It is not a de Polignac number, because 25398369 - 2¹ = 25398367 is a prime.

It is a super-2 number, since 2×25398369² = 1290154295720322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25398367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13062 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (3087591).

Almost surely, 2^25398369 is an apocalyptic number.

It is an amenable number.

25398369 is a deficient number, since it is larger than the sum of its proper divisors (11652723).

25398369 is a wasteful number, since it uses less digits than its factorization.

25398369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28048 (or 28045 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 25398369 is about 5039.6794540923. The cubic root of 25398369 is about 293.9467139301.

The spelling of 25398369 in words is "twenty-five million, three hundred ninety-eight thousand, three hundred sixty-nine".