25887983 has 4 divisors (see below), whose sum is σ = 28241448. Its totient is φ = 23534520.

The previous prime is 25887971. The next prime is 25887989. The reversal of 25887983 is 38978852.

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

It is a cyclic number.

It is not a de Polignac number, because 25887983 - 2⁶ = 25887919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25887989) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1176716 + ... + 1176737.

It is an arithmetic number, because the mean of its divisors is an integer number (7060362).

Almost surely, 2^25887983 is an apocalyptic number.

25887983 is a deficient number, since it is larger than the sum of its proper divisors (2353465).

25887983 is a wasteful number, since it uses less digits than its factorization.

25887983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353464.

The product of its digits is 967680, while the sum is 50.

The square root of 25887983 is about 5088.0234865810. The cubic root of 25887983 is about 295.8235457627.

The spelling of 25887983 in words is "twenty-five million, eight hundred eighty-seven thousand, nine hundred eighty-three".