25427271 has 4 divisors (see below), whose sum is σ = 33903032. Its totient is φ = 16951512.

The previous prime is 25427239. The next prime is 25427273. The reversal of 25427271 is 17272452.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25427271 - 2⁵ = 25427239 is a prime.

It is a super-2 number, since 2×25427271² = 1293092221014882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25427273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4237876 + ... + 4237881.

It is an arithmetic number, because the mean of its divisors is an integer number (8475758).

Almost surely, 2^25427271 is an apocalyptic number.

25427271 is a deficient number, since it is larger than the sum of its proper divisors (8475761).

25427271 is an equidigital number, since it uses as much as digits as its factorization.

25427271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475760.

The product of its digits is 7840, while the sum is 30.

The square root of 25427271 is about 5042.5460830814. The cubic root of 25427271 is about 294.0581702659.

The spelling of 25427271 in words is "twenty-five million, four hundred twenty-seven thousand, two hundred seventy-one".