25669983 has 16 divisors (see below), whose sum is σ = 36620640. Its totient is φ = 15937536.

The previous prime is 25669981. The next prime is 25670009. The reversal of 25669983 is 38996652.

It is not a de Polignac number, because 25669983 - 2¹ = 25669981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25669981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2353 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (2288790).

Almost surely, 2^25669983 is an apocalyptic number.

25669983 is a deficient number, since it is larger than the sum of its proper divisors (10950657).

25669983 is a wasteful number, since it uses less digits than its factorization.

25669983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306.

The product of its digits is 699840, while the sum is 48.

The square root of 25669983 is about 5066.5553386892. Note that the first 3 decimals coincide. The cubic root of 25669983 is about 294.9908375973.

The spelling of 25669983 in words is "twenty-five million, six hundred sixty-nine thousand, nine hundred eighty-three".