25271369 has 2 divisors, whose sum is σ = 25271370. Its totient is φ = 25271368.

The previous prime is 25271353. The next prime is 25271371. The reversal of 25271369 is 96317252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24631369 + 640000 = 4963^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 25271369 - 2⁴ = 25271353 is a prime.

It is a super-2 number, since 2×25271369² = 1277284182268322, which contains 22 as substring.

Together with 25271371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25271329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12635684 + 12635685.

It is an arithmetic number, because the mean of its divisors is an integer number (12635685).

Almost surely, 2^25271369 is an apocalyptic number.

It is an amenable number.

25271369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25271369 is an equidigital number, since it uses as much as digits as its factorization.

25271369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 25271369 is about 5027.0636558532. The cubic root of 25271369 is about 293.4559523801.

The spelling of 25271369 in words is "twenty-five million, two hundred seventy-one thousand, three hundred sixty-nine".