25429982 has 24 divisors (see below), whose sum is σ = 40109256. Its totient is φ = 12090000.

The previous prime is 25429981. The next prime is 25429991. The reversal of 25429982 is 28992452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25429981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194057 + ... + 194187.

It is an arithmetic number, because the mean of its divisors is an integer number (1671219).

Almost surely, 2^25429982 is an apocalyptic number.

25429982 is a deficient number, since it is larger than the sum of its proper divisors (14679274).

25429982 is a wasteful number, since it uses less digits than its factorization.

25429982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 265 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 25429982 is about 5042.8148885320. The cubic root of 25429982 is about 294.0686205074.

The spelling of 25429982 in words is "twenty-five million, four hundred twenty-nine thousand, nine hundred eighty-two".