25195535 has 4 divisors (see below), whose sum is σ = 30234648. Its totient is φ = 20156424.

The previous prime is 25195531. The next prime is 25195559. The reversal of 25195535 is 53559152.

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

It is a cyclic number.

It is not a de Polignac number, because 25195535 - 2² = 25195531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25195495 and 25195504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25195531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519549 + ... + 2519558.

It is an arithmetic number, because the mean of its divisors is an integer number (7558662).

Almost surely, 2^25195535 is an apocalyptic number.

25195535 is a deficient number, since it is larger than the sum of its proper divisors (5039113).

25195535 is an equidigital number, since it uses as much as digits as its factorization.

25195535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039112.

The product of its digits is 33750, while the sum is 35.

The square root of 25195535 is about 5019.5154148583. The cubic root of 25195535 is about 293.1621253269.

The spelling of 25195535 in words is "twenty-five million, one hundred ninety-five thousand, five hundred thirty-five".