63507 has 4 divisors (see below), whose sum is σ = 84680. Its totient is φ = 42336.

The previous prime is 63499. The next prime is 63521. The reversal of 63507 is 70536.

63507 is nontrivially palindromic in base 12.

63507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63507 - 2³ = 63499 is a prime.

It is a D-number.

It is a Duffinian 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, 10582 + ... + 10587.

It is an arithmetic number, because the mean of its divisors is an integer number (21170).

2⁶³⁵⁰⁷ is an apocalyptic number.

63507 is a deficient number, since it is larger than the sum of its proper divisors (21173).

63507 is a wasteful number, since it uses less digits than its factorization.

63507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21172.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 63507 is about 252.0059523107. The cubic root of 63507 is about 39.8970268072.

The spelling of 63507 in words is "sixty-three thousand, five hundred seven".