25325887 has 6 divisors (see below), whose sum is σ = 25515168. Its totient is φ = 25137504.

The previous prime is 25325863. The next prime is 25325941. The reversal of 25325887 is 78852352.

It is a de Polignac number, because none of the positive numbers 2^k-25325887 is a prime.

It is a Duffinian number.

Its product of digits (134400) is a multiple of the sum of its prime divisors (560).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325857) 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 in 5 ways as a sum of consecutive naturals, for example, 74983 + ... + 75319.

It is an arithmetic number, because the mean of its divisors is an integer number (4252528).

Almost surely, 2^25325887 is an apocalyptic number.

25325887 is a deficient number, since it is larger than the sum of its proper divisors (189281).

25325887 is an frugal number, since it uses more digits than its factorization.

25325887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 560 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 25325887 is about 5032.4831842739. The cubic root of 25325887 is about 293.6668252820. Note that the first 3 decimals are identical.

The spelling of 25325887 in words is "twenty-five million, three hundred twenty-five thousand, eight hundred eighty-seven".