53516666 has 8 divisors (see below), whose sum is σ = 91742880. Its totient is φ = 22935708.

The previous prime is 53516647. The next prime is 53516669. The reversal of 53516666 is 66661535.

53516666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (53516669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911296 + ... + 1911323.

It is an arithmetic number, because the mean of its divisors is an integer number (11467860).

Almost surely, 2^53516666 is an apocalyptic number.

53516666 is a deficient number, since it is larger than the sum of its proper divisors (38226214).

53516666 is a wasteful number, since it uses less digits than its factorization.

53516666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822628.

The product of its digits is 97200, while the sum is 38.

The square root of 53516666 is about 7315.5085947595. The cubic root of 53516666 is about 376.8452249019.

The spelling of 53516666 in words is "fifty-three million, five hundred sixteen thousand, six hundred sixty-six".