25598887 has 2 divisors, whose sum is σ = 25598888. Its totient is φ = 25598886.

The previous prime is 25598863. The next prime is 25598893. The reversal of 25598887 is 78889552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25598887 - 2¹⁵ = 25566119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25598827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12799443 + 12799444.

It is an arithmetic number, because the mean of its divisors is an integer number (12799444).

Almost surely, 2^25598887 is an apocalyptic number.

25598887 is a deficient number, since it is larger than the sum of its proper divisors (1).

25598887 is an equidigital number, since it uses as much as digits as its factorization.

25598887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 52.

The square root of 25598887 is about 5059.5342671040. The cubic root of 25598887 is about 294.7182486553.

The spelling of 25598887 in words is "twenty-five million, five hundred ninety-eight thousand, eight hundred eighty-seven".