53017866 has 96 divisors (see below), whose sum is σ = 139838400. Its totient is φ = 14307840.

The previous prime is 53017841. The next prime is 53017871. The reversal of 53017866 is 66871035.

53017866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53017866.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 63540 + ... + 64368.

It is an arithmetic number, because the mean of its divisors is an integer number (1456650).

Almost surely, 2^53017866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53017866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69919200).

53017866 is an abundant number, since it is smaller than the sum of its proper divisors (86820534).

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

53017866 is a wasteful number, since it uses less digits than its factorization.

53017866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 53017866 is about 7281.3368278085. The cubic root of 53017866 is about 375.6707781026.

The spelling of 53017866 in words is "fifty-three million, seventeen thousand, eight hundred sixty-six".