66032530 has 16 divisors (see below), whose sum is σ = 119395584. Its totient is φ = 26293680.

The previous prime is 66032521. The next prime is 66032557. The reversal of 66032530 is 3523066.

It is a junction number, because it is equal to n+sod(n) for n = 66032495 and 66032504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12576 + ... + 17035.

It is an arithmetic number, because the mean of its divisors is an integer number (7462224).

Almost surely, 2^66032530 is an apocalyptic number.

66032530 is a deficient number, since it is larger than the sum of its proper divisors (53363054).

66032530 is a wasteful number, since it uses less digits than its factorization.

66032530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29841.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 66032530 is about 8126.0402411014. The cubic root of 66032530 is about 404.1903858731.

Adding to 66032530 its reverse (3523066), we get a palindrome (69555596).

The spelling of 66032530 in words is "sixty-six million, thirty-two thousand, five hundred thirty".