25298969 has 2 divisors, whose sum is σ = 25298970. Its totient is φ = 25298968.

The previous prime is 25298939. The next prime is 25298971. The reversal of 25298969 is 96989252.

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., 19360000 + 5938969 = 4400^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 25298969 - 2¹⁶ = 25233433 is a prime.

It is a super-2 number, since 2×25298969² = 1280075664925922, which contains 22 as substring.

Together with 25298971, 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 (25298909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12649484 + 12649485.

It is an arithmetic number, because the mean of its divisors is an integer number (12649485).

Almost surely, 2^25298969 is an apocalyptic number.

It is an amenable number.

25298969 is a deficient number, since it is larger than the sum of its proper divisors (1).

25298969 is an equidigital number, since it uses as much as digits as its factorization.

25298969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 25298969 is about 5029.8080480273. The cubic root of 25298969 is about 293.5627456647.

The spelling of 25298969 in words is "twenty-five million, two hundred ninety-eight thousand, nine hundred sixty-nine".