66255230 has 16 divisors (see below), whose sum is σ = 121281840. Its totient is φ = 26052672.

The previous prime is 66255199. The next prime is 66255253. The reversal of 66255230 is 3255266.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66255193 and 66255202.

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 7 ways as a sum of consecutive naturals, for example, 55559 + ... + 56738.

It is an arithmetic number, because the mean of its divisors is an integer number (7580115).

Almost surely, 2^66255230 is an apocalyptic number.

66255230 is a deficient number, since it is larger than the sum of its proper divisors (55026610).

66255230 is a wasteful number, since it uses less digits than its factorization.

66255230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112363.

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

The square root of 66255230 is about 8139.7315680555. The cubic root of 66255230 is about 404.6442641655.

The spelling of 66255230 in words is "sixty-six million, two hundred fifty-five thousand, two hundred thirty".