66482831 has 4 divisors (see below), whose sum is σ = 66505200. Its totient is φ = 66460464.

The previous prime is 66482809. The next prime is 66482833. The reversal of 66482831 is 13828466.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66482831 is a prime.

It is a super-2 number, since 2×66482831² = 8839933635549122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66482833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5891 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (16626300).

Almost surely, 2^66482831 is an apocalyptic number.

66482831 is a deficient number, since it is larger than the sum of its proper divisors (22369).

66482831 is a wasteful number, since it uses less digits than its factorization.

66482831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22368.

The product of its digits is 55296, while the sum is 38.

The square root of 66482831 is about 8153.7004482627. The cubic root of 66482831 is about 405.1070813739.

The spelling of 66482831 in words is "sixty-six million, four hundred eighty-two thousand, eight hundred thirty-one".