25748887 has 2 divisors, whose sum is σ = 25748888. Its totient is φ = 25748886.

The previous prime is 25748851. The next prime is 25748909. The reversal of 25748887 is 78884752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25748887 - 2¹¹ = 25746839 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25748887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25748687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874443 + 12874444.

It is an arithmetic number, because the mean of its divisors is an integer number (12874444).

Almost surely, 2^25748887 is an apocalyptic number.

25748887 is a deficient number, since it is larger than the sum of its proper divisors (1).

25748887 is an equidigital number, since it uses as much as digits as its factorization.

25748887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1003520, while the sum is 49.

The square root of 25748887 is about 5074.3361142124. The cubic root of 25748887 is about 295.2927745491.

The spelling of 25748887 in words is "twenty-five million, seven hundred forty-eight thousand, eight hundred eighty-seven".