25265291 has 2 divisors, whose sum is σ = 25265292. Its totient is φ = 25265290.

The previous prime is 25265267. The next prime is 25265297. The reversal of 25265291 is 19256252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25265291 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25265297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632645 + 12632646.

It is an arithmetic number, because the mean of its divisors is an integer number (12632646).

Almost surely, 2^25265291 is an apocalyptic number.

25265291 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265291 is an equidigital number, since it uses as much as digits as its factorization.

25265291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 25265291 is about 5026.4590916469. The cubic root of 25265291 is about 293.4324241957.

The spelling of 25265291 in words is "twenty-five million, two hundred sixty-five thousand, two hundred ninety-one".