25689038 has 4 divisors (see below), whose sum is σ = 38533560. Its totient is φ = 12844518.

The previous prime is 25689031. The next prime is 25689043. The reversal of 25689038 is 83098652.

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

It is a junction number, because it is equal to n+sod(n) for n = 25688986 and 25689004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25689031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422258 + ... + 6422261.

It is an arithmetic number, because the mean of its divisors is an integer number (9633390).

Almost surely, 2^25689038 is an apocalyptic number.

25689038 is a deficient number, since it is larger than the sum of its proper divisors (12844522).

25689038 is a wasteful number, since it uses less digits than its factorization.

25689038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844521.

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

The square root of 25689038 is about 5068.4354587979. The cubic root of 25689038 is about 295.0638107677.

The spelling of 25689038 in words is "twenty-five million, six hundred eighty-nine thousand, thirty-eight".