25276961 has 2 divisors, whose sum is σ = 25276962. Its totient is φ = 25276960.

The previous prime is 25276913. The next prime is 25276963. The reversal of 25276961 is 16967252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 126736 = 5015^2 + 356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25276961 is a prime.

Together with 25276963, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (25276963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12638480 + 12638481.

It is an arithmetic number, because the mean of its divisors is an integer number (12638481).

Almost surely, 2^25276961 is an apocalyptic number.

It is an amenable number.

25276961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25276961 is an equidigital number, since it uses as much as digits as its factorization.

25276961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 25276961 is about 5027.6198145842. The cubic root of 25276961 is about 293.4775959070.

The spelling of 25276961 in words is "twenty-five million, two hundred seventy-six thousand, nine hundred sixty-one".