53116566 has 16 divisors (see below), whose sum is σ = 108824688. Its totient is φ = 17273600.

The previous prime is 53116549. The next prime is 53116573. The reversal of 53116566 is 66561135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107715 + ... + 108206.

It is an arithmetic number, because the mean of its divisors is an integer number (6801543).

Almost surely, 2^53116566 is an apocalyptic number.

53116566 is an abundant number, since it is smaller than the sum of its proper divisors (55708122).

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

53116566 is a wasteful number, since it uses less digits than its factorization.

53116566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215967.

The product of its digits is 16200, while the sum is 33.

The square root of 53116566 is about 7288.1112779650. Note that the first 3 decimals coincide. The cubic root of 53116566 is about 375.9037544137.

The spelling of 53116566 in words is "fifty-three million, one hundred sixteen thousand, five hundred sixty-six".