25722271 has 2 divisors, whose sum is σ = 25722272. Its totient is φ = 25722270.

The previous prime is 25722269. The next prime is 25722283. The reversal of 25722271 is 17222752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25722271 - 2¹ = 25722269 is a prime.

Together with 25722269, it forms a pair of twin primes.

It is equal to p_1608229 and since 25722271 and 1608229 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25722251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861135 + 12861136.

It is an arithmetic number, because the mean of its divisors is an integer number (12861136).

Almost surely, 2^25722271 is an apocalyptic number.

25722271 is a deficient number, since it is larger than the sum of its proper divisors (1).

25722271 is an equidigital number, since it uses as much as digits as its factorization.

25722271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 25722271 is about 5071.7128270437. The cubic root of 25722271 is about 295.1909938119.

The spelling of 25722271 in words is "twenty-five million, seven hundred twenty-two thousand, two hundred seventy-one".