25402271 has 2 divisors, whose sum is σ = 25402272. Its totient is φ = 25402270.

The previous prime is 25402261. The next prime is 25402319. The reversal of 25402271 is 17220452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25402271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25402241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701135 + 12701136.

It is an arithmetic number, because the mean of its divisors is an integer number (12701136).

Almost surely, 2^25402271 is an apocalyptic number.

25402271 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402271 is an equidigital number, since it uses as much as digits as its factorization.

25402271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 25402271 is about 5040.0665670207. The cubic root of 25402271 is about 293.9617663579.

The spelling of 25402271 in words is "twenty-five million, four hundred two thousand, two hundred seventy-one".