25055969 has 2 divisors, whose sum is σ = 25055970. Its totient is φ = 25055968.

The previous prime is 25055941. The next prime is 25055981. The reversal of 25055969 is 96955052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21743569 + 3312400 = 4663^2 + 1820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25055969 is a prime.

It is a super-2 number, since 2×25055969² = 1255603165057922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25055929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527984 + 12527985.

It is an arithmetic number, because the mean of its divisors is an integer number (12527985).

Almost surely, 2^25055969 is an apocalyptic number.

It is an amenable number.

25055969 is a deficient number, since it is larger than the sum of its proper divisors (1).

25055969 is an equidigital number, since it uses as much as digits as its factorization.

25055969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 25055969 is about 5005.5937709726. The cubic root of 25055969 is about 292.6198169851.

The spelling of 25055969 in words is "twenty-five million, fifty-five thousand, nine hundred sixty-nine".