66055232 has 28 divisors (see below), whose sum is σ = 131580636. Its totient is φ = 32901120.

The previous prime is 66055211. The next prime is 66055259. The reversal of 66055232 is 23255066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21752896 + 44302336 = 4664^2 + 6656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66055195 and 66055204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16148 + ... + 19820.

Almost surely, 2^66055232 is an apocalyptic number.

It is an amenable number.

66055232 is a deficient number, since it is larger than the sum of its proper divisors (65525404).

66055232 is a wasteful number, since it uses less digits than its factorization.

66055232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 66055232 is about 8127.4369883746. The cubic root of 66055232 is about 404.2367008171.

The spelling of 66055232 in words is "sixty-six million, fifty-five thousand, two hundred thirty-two".