25364081 has 2 divisors, whose sum is σ = 25364082. Its totient is φ = 25364080.

The previous prime is 25364071. The next prime is 25364083. The reversal of 25364081 is 18046352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20784481 + 4579600 = 4559^2 + 2140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25364081 is a prime.

It is a super-2 number, since 2×25364081² = 1286673209949122, which contains 22 as substring.

Together with 25364083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25364083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12682040 + 12682041.

It is an arithmetic number, because the mean of its divisors is an integer number (12682041).

Almost surely, 2^25364081 is an apocalyptic number.

It is an amenable number.

25364081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25364081 is an equidigital number, since it uses as much as digits as its factorization.

25364081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 25364081 is about 5036.2765015436. The cubic root of 25364081 is about 293.8143775606.

The spelling of 25364081 in words is "twenty-five million, three hundred sixty-four thousand, eighty-one".