25313047 has 4 divisors (see below), whose sum is σ = 25373880. Its totient is φ = 25252216.

The previous prime is 25313033. The next prime is 25313059. The reversal of 25313047 is 74031352.

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 25313047 - 2⁷ = 25312919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313077) 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, 29788 + ... + 30625.

It is an arithmetic number, because the mean of its divisors is an integer number (6343470).

Almost surely, 2^25313047 is an apocalyptic number.

25313047 is a deficient number, since it is larger than the sum of its proper divisors (60833).

25313047 is an equidigital number, since it uses as much as digits as its factorization.

25313047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60832.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 25313047 is about 5031.2073103779. The cubic root of 25313047 is about 293.6171880676.

Adding to 25313047 its reverse (74031352), we get a palindrome (99344399).

The spelling of 25313047 in words is "twenty-five million, three hundred thirteen thousand, forty-seven".