66332125 has 16 divisors (see below), whose sum is σ = 83010096. Its totient is φ = 52920000.

The previous prime is 66332111. The next prime is 66332129. The reversal of 66332125 is 52123366.

It can be written as a sum of positive squares in 8 ways, for example, as 7518564 + 58813561 = 2742^2 + 7669^2 .

It is not a de Polignac number, because 66332125 - 2⁵ = 66332093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66332093 and 66332102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66332129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87247 + ... + 88003.

It is an arithmetic number, because the mean of its divisors is an integer number (5188131).

Almost surely, 2^66332125 is an apocalyptic number.

It is an amenable number.

66332125 is a deficient number, since it is larger than the sum of its proper divisors (16677971).

66332125 is an equidigital number, since it uses as much as digits as its factorization.

66332125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1463 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 66332125 is about 8144.4536342225. The cubic root of 66332125 is about 404.8007453528.

The spelling of 66332125 in words is "sixty-six million, three hundred thirty-two thousand, one hundred twenty-five".