63713251 has 16 divisors (see below), whose sum is σ = 76917760. Its totient is φ = 51698088.

The previous prime is 63713239. The next prime is 63713281. The reversal of 63713251 is 15231736.

It is not a de Polignac number, because 63713251 - 2¹¹ = 63711203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63713281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47350 + ... + 48676.

It is an arithmetic number, because the mean of its divisors is an integer number (4807360).

Almost surely, 2^63713251 is an apocalyptic number.

63713251 is a deficient number, since it is larger than the sum of its proper divisors (13204509).

63713251 is an equidigital number, since it uses as much as digits as its factorization.

63713251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1353 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 63713251 is about 7982.0580679421. The cubic root of 63713251 is about 399.4017118243.

Adding to 63713251 its reverse (15231736), we get a palindrome (78944987).

The spelling of 63713251 in words is "sixty-three million, seven hundred thirteen thousand, two hundred fifty-one".