25903039 has 2 divisors, whose sum is σ = 25903040. Its totient is φ = 25903038.

The previous prime is 25903027. The next prime is 25903069. The reversal of 25903039 is 93030952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25903039 is a prime.

It is a Chen prime.

It is equal to p_1618834 and since 25903039 and 1618834 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25903039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25903069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12951519 + 12951520.

It is an arithmetic number, because the mean of its divisors is an integer number (12951520).

Almost surely, 2^25903039 is an apocalyptic number.

25903039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25903039 is an equidigital number, since it uses as much as digits as its factorization.

25903039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 25903039 is about 5089.5028244417. The cubic root of 25903039 is about 295.8808832559.

The spelling of 25903039 in words is "twenty-five million, nine hundred three thousand, thirty-nine".