25196985 has 48 divisors (see below), whose sum is σ = 48185280. Its totient is φ = 12078720.

The previous prime is 25196957. The next prime is 25196999. The reversal of 25196985 is 58969152.

It is not a de Polignac number, because 25196985 - 2⁶ = 25196921 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 25196985.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53722 + ... + 54188.

It is an arithmetic number, because the mean of its divisors is an integer number (1003860).

Almost surely, 2^25196985 is an apocalyptic number.

It is an amenable number.

25196985 is a deficient number, since it is larger than the sum of its proper divisors (22988295).

25196985 is a wasteful number, since it uses less digits than its factorization.

25196985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 595 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 25196985 is about 5019.6598490336. The cubic root of 25196985 is about 293.1677490340.

The spelling of 25196985 in words is "twenty-five million, one hundred ninety-six thousand, nine hundred eighty-five".