25473895 has 4 divisors (see below), whose sum is σ = 30568680. Its totient is φ = 20379112.

The previous prime is 25473893. The next prime is 25473901. The reversal of 25473895 is 59837452.

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 25473895 - 2¹ = 25473893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25473893) by changing a digit.

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, 2547385 + ... + 2547394.

It is an arithmetic number, because the mean of its divisors is an integer number (7642170).

Almost surely, 2^25473895 is an apocalyptic number.

25473895 is a deficient number, since it is larger than the sum of its proper divisors (5094785).

25473895 is an equidigital number, since it uses as much as digits as its factorization.

25473895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094784.

The product of its digits is 302400, while the sum is 43.

The square root of 25473895 is about 5047.1670271549. The cubic root of 25473895 is about 294.2377910217.

The spelling of 25473895 in words is "twenty-five million, four hundred seventy-three thousand, eight hundred ninety-five".