25371369 has 27 divisors (see below), whose sum is σ = 38842167. Its totient is φ = 15957216.

The previous prime is 25371343. The next prime is 25371371. The reversal of 25371369 is 96317352.

The square root of 25371369 is 5037.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14402025 + 10969344 = 3795^2 + 3312^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25371369 is a prime.

It is a super-2 number, since 2×25371369² = 1287412729868322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25371389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 347517 + ... + 347589.

Almost surely, 2^25371369 is an apocalyptic number.

25371369 is the 5037-th square number.

25371369 is the 2519-th centered octagonal number.

It is an amenable number.

25371369 is a deficient number, since it is larger than the sum of its proper divisors (13470798).

25371369 is an equidigital number, since it uses as much as digits as its factorization.

25371369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 99 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The cubic root of 25371369 is about 293.8425159626.

Multiplying 25371369 by its sum of digits (36), we get a square (913369284 = 30222²).

The spelling of 25371369 in words is "twenty-five million, three hundred seventy-one thousand, three hundred sixty-nine".