25826985 has 32 divisors (see below), whose sum is σ = 48336000. Its totient is φ = 13048128.

The previous prime is 25826981. The next prime is 25826987. The reversal of 25826985 is 58962852.

25826985 is a `hidden beast` number, since 2 + 582 + 69 + 8 + 5 = 666.

It is not a de Polignac number, because 25826985 - 2² = 25826981 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 25826985.

It is not an unprimeable number, because it can be changed into a prime (25826981) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2470 + ... + 7599.

It is an arithmetic number, because the mean of its divisors is an integer number (1510500).

Almost surely, 2^25826985 is an apocalyptic number.

It is an amenable number.

25826985 is a deficient number, since it is larger than the sum of its proper divisors (22509015).

25826985 is a wasteful number, since it uses less digits than its factorization.

25826985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102 (or 10096 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 25826985 is about 5082.0256788017. The cubic root of 25826985 is about 295.5910204290.

The spelling of 25826985 in words is "twenty-five million, eight hundred twenty-six thousand, nine hundred eighty-five".