25997882 has 4 divisors (see below), whose sum is σ = 38996826. Its totient is φ = 12998940.

The previous prime is 25997869. The next prime is 25997887. The reversal of 25997882 is 28879952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 12609601 = 3659^2 + 3551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25997882.

It is not an unprimeable number, because it can be changed into a prime (25997887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6499469 + ... + 6499472.

Almost surely, 2^25997882 is an apocalyptic number.

25997882 is a deficient number, since it is larger than the sum of its proper divisors (12998944).

25997882 is a wasteful number, since it uses less digits than its factorization.

25997882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998943.

The product of its digits is 725760, while the sum is 50.

The square root of 25997882 is about 5098.8118223759. The cubic root of 25997882 is about 296.2415623060.

The spelling of 25997882 in words is "twenty-five million, nine hundred ninety-seven thousand, eight hundred eighty-two".