25742495 has 4 divisors (see below), whose sum is σ = 30891000. Its totient is φ = 20593992.

The previous prime is 25742489. The next prime is 25742503. The reversal of 25742495 is 59424752.

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 25742495 - 2⁸ = 25742239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574245 + ... + 2574254.

It is an arithmetic number, because the mean of its divisors is an integer number (7722750).

Almost surely, 2^25742495 is an apocalyptic number.

25742495 is a deficient number, since it is larger than the sum of its proper divisors (5148505).

25742495 is an equidigital number, since it uses as much as digits as its factorization.

25742495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148504.

The product of its digits is 100800, while the sum is 38.

The square root of 25742495 is about 5073.7062390328. The cubic root of 25742495 is about 295.2683376660.

The spelling of 25742495 in words is "twenty-five million, seven hundred forty-two thousand, four hundred ninety-five".