53311866 has 8 divisors (see below), whose sum is σ = 106623744. Its totient is φ = 17770620.

The previous prime is 53311829. The next prime is 53311871. The reversal of 53311866 is 66811335.

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

53311866 is an admirable number.

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, 4442650 + ... + 4442661.

It is an arithmetic number, because the mean of its divisors is an integer number (13327968).

Almost surely, 2^53311866 is an apocalyptic number.

53311866 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.

53311866 is a wasteful number, since it uses less digits than its factorization.

53311866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8885316.

The product of its digits is 12960, while the sum is 33.

The square root of 53311866 is about 7301.4975176329. The cubic root of 53311866 is about 376.3639009395.

The spelling of 53311866 in words is "fifty-three million, three hundred eleven thousand, eight hundred sixty-six".