66252030 has 64 divisors (see below), whose sum is σ = 172162368. Its totient is φ = 16220160.

The previous prime is 66252001. The next prime is 66252041. The reversal of 66252030 is 3025266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99900 + ... + 100560.

It is an arithmetic number, because the mean of its divisors is an integer number (2690037).

Almost surely, 2^66252030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66252030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86081184).

66252030 is an abundant number, since it is smaller than the sum of its proper divisors (105910338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66252030 is a wasteful number, since it uses less digits than its factorization.

66252030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 66252030 is about 8139.5349990033. The cubic root of 66252030 is about 404.6377495477.

Adding to 66252030 its reverse (3025266), we get a palindrome (69277296).

The spelling of 66252030 in words is "sixty-six million, two hundred fifty-two thousand, thirty".