63573 has 4 divisors (see below), whose sum is σ = 84768. Its totient is φ = 42380.

The previous prime is 63559. The next prime is 63577. The reversal of 63573 is 37536.

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 63573 - 2⁵ = 63541 is a prime.

It is a D-number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63577) 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, 10593 + ... + 10598.

It is an arithmetic number, because the mean of its divisors is an integer number (21192).

2⁶³⁵⁷³ is an apocalyptic number.

It is an amenable number.

63573 is a deficient number, since it is larger than the sum of its proper divisors (21195).

63573 is a wasteful number, since it uses less digits than its factorization.

63573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21194.

The product of its digits is 1890, while the sum is 24.

The square root of 63573 is about 252.1368675938. The cubic root of 63573 is about 39.9108430905.

It can be divided in two parts, 63 and 573, that added together give a palindrome (636).

The spelling of 63573 in words is "sixty-three thousand, five hundred seventy-three".