53959686 has 48 divisors (see below), whose sum is σ = 120149568. Its totient is φ = 16021200.

The previous prime is 53959673. The next prime is 53959693. The reversal of 53959686 is 68695935.

53959686 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 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 23 ways as a sum of consecutive naturals, for example, 411841 + ... + 411971.

It is an arithmetic number, because the mean of its divisors is an integer number (2503116).

Almost surely, 2^53959686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53959686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60074784).

53959686 is an abundant number, since it is smaller than the sum of its proper divisors (66189882).

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

53959686 is a wasteful number, since it uses less digits than its factorization.

53959686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 226 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 51.

The square root of 53959686 is about 7345.7256959405. The cubic root of 53959686 is about 377.8822314458.

It can be divided in two parts, 53959 and 686, that added together give a palindrome (54645).

The spelling of 53959686 in words is "fifty-three million, nine hundred fifty-nine thousand, six hundred eighty-six".