52809916 has 12 divisors (see below), whose sum is σ = 92815632. Its totient is φ = 26291168.

The previous prime is 52809901. The next prime is 52809917. The reversal of 52809916 is 61990825.

52809916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52809917) 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, 27400 + ... + 29263.

It is an arithmetic number, because the mean of its divisors is an integer number (7734636).

Almost surely, 2^52809916 is an apocalyptic number.

It is an amenable number.

52809916 is a deficient number, since it is larger than the sum of its proper divisors (40005716).

52809916 is a wasteful number, since it uses less digits than its factorization.

52809916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56900 (or 56898 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 52809916 is about 7267.0431400949. The cubic root of 52809916 is about 375.1789747160.

The spelling of 52809916 in words is "fifty-two million, eight hundred nine thousand, nine hundred sixteen".