25195039 has 8 divisors (see below), whose sum is σ = 25945488. Its totient is φ = 24448320.

The previous prime is 25194977. The next prime is 25195057. The reversal of 25195039 is 93059152.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25195039 - 2¹⁵ = 25162271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25194995 and 25195013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25195069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18624 + ... + 19930.

It is an arithmetic number, because the mean of its divisors is an integer number (3243186).

Almost surely, 2^25195039 is an apocalyptic number.

25195039 is a deficient number, since it is larger than the sum of its proper divisors (750449).

25195039 is a wasteful number, since it uses less digits than its factorization.

25195039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 25195039 is about 5019.4660074554. The cubic root of 25195039 is about 293.1602015817.

It can be divided in two parts, 2519 and 5039, that multiplied together give a triangular number (12693241 = T₅₀₃₈).

The spelling of 25195039 in words is "twenty-five million, one hundred ninety-five thousand, thirty-nine".