32506 has 4 divisors (see below), whose sum is σ = 48762. Its totient is φ = 16252.

The previous prime is 32503. The next prime is 32507. The reversal of 32506 is 60523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60523 = 29 ⋅2087.

It can be written as a sum of positive squares in only one way, i.e., 25281 + 7225 = 159^2 + 85^2 .

It is a plaindrome in base 14.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 32506.

It is not an unprimeable number, because it can be changed into a prime (32503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8125 + ... + 8128.

2³²⁵⁰⁶ is an apocalyptic number.

32506 is a deficient number, since it is larger than the sum of its proper divisors (16256).

32506 is a wasteful number, since it uses less digits than its factorization.

32506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16255.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 32506 is about 180.2942040111. The cubic root of 32506 is about 31.9144852209.

The spelling of 32506 in words is "thirty-two thousand, five hundred six".