25358985 has 24 divisors (see below), whose sum is σ = 46542600. Its totient is φ = 12728832.

The previous prime is 25358953. The next prime is 25359007. The reversal of 25358985 is 58985352.

It can be written as a sum of positive squares in 4 ways, for example, as 13927824 + 11431161 = 3732^2 + 3381^2 .

It is not a de Polignac number, because 25358985 - 2⁵ = 25358953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25358985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15810 + ... + 17339.

It is an arithmetic number, because the mean of its divisors is an integer number (1939275).

Almost surely, 2^25358985 is an apocalyptic number.

It is an amenable number.

25358985 is a deficient number, since it is larger than the sum of its proper divisors (21183615).

25358985 is a wasteful number, since it uses less digits than its factorization.

25358985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33177 (or 33174 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 25358985 is about 5035.7705467982. The cubic root of 25358985 is about 293.7946990980.

The spelling of 25358985 in words is "twenty-five million, three hundred fifty-eight thousand, nine hundred eighty-five".