66252232 has 16 divisors (see below), whose sum is σ = 124556400. Its totient is φ = 33037200.

The previous prime is 66252227. The next prime is 66252233. The reversal of 66252232 is 23225266.

It is a self number, because there is not a number n which added to its sum of digits gives 66252232.

It is not an unprimeable number, because it can be changed into a prime (66252233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7894 + ... + 13957.

It is an arithmetic number, because the mean of its divisors is an integer number (7784775).

Almost surely, 2^66252232 is an apocalyptic number.

It is an amenable number.

66252232 is a deficient number, since it is larger than the sum of its proper divisors (58304168).

66252232 is a wasteful number, since it uses less digits than its factorization.

66252232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22236 (or 22232 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 66252232 is about 8139.5474075651. The cubic root of 66252232 is about 404.6381607892.

Adding to 66252232 its reverse (23225266), we get a palindrome (89477498).

The spelling of 66252232 in words is "sixty-six million, two hundred fifty-two thousand, two hundred thirty-two".