25912982 has 4 divisors (see below), whose sum is σ = 38869476. Its totient is φ = 12956490.

The previous prime is 25912967. The next prime is 25913009. The reversal of 25912982 is 28921952.

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

It is a super-2 number, since 2×25912982² = 1342965272264648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6478244 + ... + 6478247.

It is an arithmetic number, because the mean of its divisors is an integer number (9717369).

Almost surely, 2^25912982 is an apocalyptic number.

25912982 is a deficient number, since it is larger than the sum of its proper divisors (12956494).

25912982 is a wasteful number, since it uses less digits than its factorization.

25912982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12956493.

The product of its digits is 25920, while the sum is 38.

The square root of 25912982 is about 5090.4795451902. The cubic root of 25912982 is about 295.9187368230.

The spelling of 25912982 in words is "twenty-five million, nine hundred twelve thousand, nine hundred eighty-two".