25683947 has 4 divisors (see below), whose sum is σ = 25745376. Its totient is φ = 25622520.

The previous prime is 25683941. The next prime is 25683967. The reversal of 25683947 is 74938652.

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 25683947 - 2¹² = 25679851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25683898 and 25683907.

It is not an unprimeable number, because it can be changed into a prime (25683941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30083 + ... + 30924.

It is an arithmetic number, because the mean of its divisors is an integer number (6436344).

Almost surely, 2^25683947 is an apocalyptic number.

25683947 is a deficient number, since it is larger than the sum of its proper divisors (61429).

25683947 is an equidigital number, since it uses as much as digits as its factorization.

25683947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61428.

The product of its digits is 362880, while the sum is 44.

The square root of 25683947 is about 5067.9332079261. The cubic root of 25683947 is about 295.0443177697.

The spelling of 25683947 in words is "twenty-five million, six hundred eighty-three thousand, nine hundred forty-seven".