16232506 has 4 divisors (see below), whose sum is σ = 24348762. Its totient is φ = 8116252.

The previous prime is 16232473. The next prime is 16232509. The reversal of 16232506 is 60523261.

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

It can be written as a sum of positive squares in only one way, i.e., 13256881 + 2975625 = 3641^2 + 1725^2 .

It is not an unprimeable number, because it can be changed into a prime (16232509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4058125 + ... + 4058128.

Almost surely, 2^16232506 is an apocalyptic number.

16232506 is a deficient number, since it is larger than the sum of its proper divisors (8116256).

16232506 is an equidigital number, since it uses as much as digits as its factorization.

16232506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116255.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16232506 is about 4028.9584261940. The cubic root of 16232506 is about 253.1989249306.

Adding to 16232506 its reverse (60523261), we get a palindrome (76755767).

The spelling of 16232506 in words is "sixteen million, two hundred thirty-two thousand, five hundred six".