25325281 has 2 divisors, whose sum is σ = 25325282. Its totient is φ = 25325280.

The previous prime is 25325273. The next prime is 25325303. The reversal of 25325281 is 18252352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22953681 + 2371600 = 4791^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 25325281 - 2³ = 25325273 is a prime.

It is a super-2 number, since 2×25325281² = 1282739715457922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25325681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12662640 + 12662641.

It is an arithmetic number, because the mean of its divisors is an integer number (12662641).

Almost surely, 2^25325281 is an apocalyptic number.

It is an amenable number.

25325281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25325281 is an equidigital number, since it uses as much as digits as its factorization.

25325281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 25325281 is about 5032.4229750688. The cubic root of 25325281 is about 293.6644829683.

The spelling of 25325281 in words is "twenty-five million, three hundred twenty-five thousand, two hundred eighty-one".