25453081 has 2 divisors, whose sum is σ = 25453082. Its totient is φ = 25453080.

The previous prime is 25453073. The next prime is 25453117. The reversal of 25453081 is 18035452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 11696400 = 3709^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 25453081 - 2³ = 25453073 is a prime.

It is a super-2 number, since 2×25453081² = 1295718664785122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25453061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12726540 + 12726541.

It is an arithmetic number, because the mean of its divisors is an integer number (12726541).

Almost surely, 2^25453081 is an apocalyptic number.

It is an amenable number.

25453081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25453081 is an equidigital number, since it uses as much as digits as its factorization.

25453081 is an odious number, because the sum of its binary digits is odd.

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

The square root of 25453081 is about 5045.1046569918. The cubic root of 25453081 is about 294.1576313899.

It can be divided in two parts, 254 and 53081, that added together give a palindrome (53335).

The spelling of 25453081 in words is "twenty-five million, four hundred fifty-three thousand, eighty-one".