25143713 has 6 divisors (see below), whose sum is σ = 29248866. Its totient is φ = 21551712.

The previous prime is 25143709. The next prime is 25143719. The reversal of 25143713 is 31734152.

It can be written as a sum of positive squares in only one way, i.e., 23261329 + 1882384 = 4823^2 + 1372^2 .

It is not a de Polignac number, because 25143713 - 2² = 25143709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25143719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256520 + ... + 256617.

It is an arithmetic number, because the mean of its divisors is an integer number (4874811).

Almost surely, 2^25143713 is an apocalyptic number.

It is an amenable number.

25143713 is a deficient number, since it is larger than the sum of its proper divisors (4105153).

25143713 is an equidigital number, since it uses as much as digits as its factorization.

25143713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513151 (or 513144 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 25143713 is about 5014.3507057245. The cubic root of 25143713 is about 292.9609961010.

Adding to 25143713 its reverse (31734152), we get a palindrome (56877865).

The spelling of 25143713 in words is "twenty-five million, one hundred forty-three thousand, seven hundred thirteen".