25283147 has 4 divisors (see below), whose sum is σ = 25543896. Its totient is φ = 25022400.

The previous prime is 25283143. The next prime is 25283161. The reversal of 25283147 is 74138252.

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 25283147 - 2² = 25283143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25283143) 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 3 ways as a sum of consecutive naturals, for example, 130229 + ... + 130422.

It is an arithmetic number, because the mean of its divisors is an integer number (6385974).

Almost surely, 2^25283147 is an apocalyptic number.

25283147 is a deficient number, since it is larger than the sum of its proper divisors (260749).

25283147 is an equidigital number, since it uses as much as digits as its factorization.

25283147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260748.

The product of its digits is 13440, while the sum is 32.

The square root of 25283147 is about 5028.2349785984. The cubic root of 25283147 is about 293.5015347596.

The spelling of 25283147 in words is "twenty-five million, two hundred eighty-three thousand, one hundred forty-seven".