25984925 has 12 divisors (see below), whose sum is σ = 34117236. Its totient is φ = 19564800.

The previous prime is 25984921. The next prime is 25984967. The reversal of 25984925 is 52948952.

It can be written as a sum of positive squares in 6 ways, for example, as 2229049 + 23755876 = 1493^2 + 4874^2 .

It is not a de Polignac number, because 25984925 - 2² = 25984921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25984921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30146 + ... + 30995.

It is an arithmetic number, because the mean of its divisors is an integer number (2843103).

Almost surely, 2^25984925 is an apocalyptic number.

25984925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25984925 is a deficient number, since it is larger than the sum of its proper divisors (8132311).

25984925 is a wasteful number, since it uses less digits than its factorization.

25984925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61168 (or 61163 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 25984925 is about 5097.5410738904. The cubic root of 25984925 is about 296.1923398377.

It can be divided in two parts, 259 and 84925, that added together give a cube (85184 = 44³).

The spelling of 25984925 in words is "twenty-five million, nine hundred eighty-four thousand, nine hundred twenty-five".