25303969 has 2 divisors, whose sum is σ = 25303970. Its totient is φ = 25303968.

The previous prime is 25303951. The next prime is 25304003. The reversal of 25303969 is 96930352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24137569 + 1166400 = 4913^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 25303969 - 2¹⁹ = 24779681 is a prime.

It is a super-2 number, since 2×25303969² = 1280581694305922, which contains 22 as substring.

It is equal to p_1583686 and since 25303969 and 1583686 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25303919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12651984 + 12651985.

It is an arithmetic number, because the mean of its divisors is an integer number (12651985).

Almost surely, 2^25303969 is an apocalyptic number.

It is an amenable number.

25303969 is a deficient number, since it is larger than the sum of its proper divisors (1).

25303969 is an equidigital number, since it uses as much as digits as its factorization.

25303969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 25303969 is about 5030.3050603318. The cubic root of 25303969 is about 293.5820839632.

The spelling of 25303969 in words is "twenty-five million, three hundred three thousand, nine hundred sixty-nine".