25976081 has 2 divisors, whose sum is σ = 25976082. Its totient is φ = 25976080.

The previous prime is 25976053. The next prime is 25976099. The reversal of 25976081 is 18067952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24167056 + 1809025 = 4916^2 + 1345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25976081 is a prime.

It is a super-2 number, since 2×25976081² = 1349513568237122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25976381) 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, 12988040 + 12988041.

It is an arithmetic number, because the mean of its divisors is an integer number (12988041).

Almost surely, 2^25976081 is an apocalyptic number.

It is an amenable number.

25976081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25976081 is an equidigital number, since it uses as much as digits as its factorization.

25976081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 25976081 is about 5096.6735229952. The cubic root of 25976081 is about 296.1587328868.

The spelling of 25976081 in words is "twenty-five million, nine hundred seventy-six thousand, eighty-one".