25130447 has 4 divisors (see below), whose sum is σ = 25714920. Its totient is φ = 24545976.

The previous prime is 25130431. The next prime is 25130449. The reversal of 25130447 is 74403152.

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 25130447 - 2⁴ = 25130431 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 (25130449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292172 + ... + 292257.

It is an arithmetic number, because the mean of its divisors is an integer number (6428730).

Almost surely, 2^25130447 is an apocalyptic number.

25130447 is a deficient number, since it is larger than the sum of its proper divisors (584473).

25130447 is an equidigital number, since it uses as much as digits as its factorization.

25130447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584472.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 25130447 is about 5013.0277278308. The cubic root of 25130447 is about 292.9094642758.

Adding to 25130447 its reverse (74403152), we get a palindrome (99533599).

The spelling of 25130447 in words is "twenty-five million, one hundred thirty thousand, four hundred forty-seven".