25942587 has 16 divisors (see below), whose sum is σ = 38756352. Its totient is φ = 15297120.

The previous prime is 25942577. The next prime is 25942603. The reversal of 25942587 is 78524952.

It is not a de Polignac number, because 25942587 - 2⁸ = 25942331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25942517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9403 + ... + 11844.

It is an arithmetic number, because the mean of its divisors is an integer number (2422272).

Almost surely, 2^25942587 is an apocalyptic number.

25942587 is a deficient number, since it is larger than the sum of its proper divisors (12813765).

25942587 is a wasteful number, since it uses less digits than its factorization.

25942587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21298.

The product of its digits is 201600, while the sum is 42.

The square root of 25942587 is about 5093.3865943987. The cubic root of 25942587 is about 296.0313874374.

The spelling of 25942587 in words is "twenty-five million, nine hundred forty-two thousand, five hundred eighty-seven".