25265771 has 2 divisors, whose sum is σ = 25265772. Its totient is φ = 25265770.

The previous prime is 25265759. The next prime is 25265809. The reversal of 25265771 is 17756252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25265771 - 2²² = 21071467 is a prime.

It is not a weakly prime, because it can be changed into another prime (25265711) 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 as a sum of consecutive naturals, namely, 12632885 + 12632886.

It is an arithmetic number, because the mean of its divisors is an integer number (12632886).

Almost surely, 2^25265771 is an apocalyptic number.

25265771 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265771 is an equidigital number, since it uses as much as digits as its factorization.

25265771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 25265771 is about 5026.5068387499. The cubic root of 25265771 is about 293.4342824324.

The spelling of 25265771 in words is "twenty-five million, two hundred sixty-five thousand, seven hundred seventy-one".