25195042 has 4 divisors (see below), whose sum is σ = 37792566. Its totient is φ = 12597520.

The previous prime is 25194977. The next prime is 25195057. The reversal of 25195042 is 24059152.

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

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 8946081 = 4031^2 + 2991^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25195042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6298759 + ... + 6298762.

Almost surely, 2^25195042 is an apocalyptic number.

25195042 is a deficient number, since it is larger than the sum of its proper divisors (12597524).

25195042 is a wasteful number, since it uses less digits than its factorization.

25195042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12597523.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25195042 is about 5019.4663062919. The cubic root of 25195042 is about 293.1602132173.

The spelling of 25195042 in words is "twenty-five million, one hundred ninety-five thousand, forty-two".