53286666 has 8 divisors (see below), whose sum is σ = 106573344. Its totient is φ = 17762220.

The previous prime is 53286647. The next prime is 53286671. The reversal of 53286666 is 66668235.

It is a sphenic number, since it is the product of 3 distinct primes.

53286666 is an admirable number.

53286666 is a modest number, since divided by 6666 gives 5328 as remainder.

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, 4440550 + ... + 4440561.

It is an arithmetic number, because the mean of its divisors is an integer number (13321668).

Almost surely, 2^53286666 is an apocalyptic number.

53286666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53286666 is a wasteful number, since it uses less digits than its factorization.

53286666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881116.

The product of its digits is 311040, while the sum is 42.

The square root of 53286666 is about 7299.7716402638. The cubic root of 53286666 is about 376.3045904095.

The spelling of 53286666 in words is "fifty-three million, two hundred eighty-six thousand, six hundred sixty-six".