25918282 has 8 divisors (see below), whose sum is σ = 41868036. Its totient is φ = 11962272.

The previous prime is 25918259. The next prime is 25918283. The reversal of 25918282 is 28281952.

It is a Cunningham number, because it is equal to 5091²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 1 = 5091^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25918283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498403 + ... + 498454.

Almost surely, 2^25918282 is an apocalyptic number.

25918282 is a deficient number, since it is larger than the sum of its proper divisors (15949754).

25918282 is a wasteful number, since it uses less digits than its factorization.

25918282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996872.

The product of its digits is 23040, while the sum is 37.

The square root of 25918282 is about 5091.0000982125. Note that the first 4 decimals coincide. The cubic root of 25918282 is about 295.9389102685.

The spelling of 25918282 in words is "twenty-five million, nine hundred eighteen thousand, two hundred eighty-two".