63517 has 4 divisors (see below), whose sum is σ = 66880. Its totient is φ = 60156.

The previous prime is 63499. The next prime is 63521. The reversal of 63517 is 71536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63517 - 2⁷ = 63389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (16720).

2⁶³⁵¹⁷ is an apocalyptic number.

It is an amenable number.

63517 is a deficient number, since it is larger than the sum of its proper divisors (3363).

63517 is a wasteful number, since it uses less digits than its factorization.

63517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362.

The product of its digits is 630, while the sum is 22.

The square root of 63517 is about 252.0257923309. The cubic root of 63517 is about 39.8991207985.

The spelling of 63517 in words is "sixty-three thousand, five hundred seventeen".