53581086 has 48 divisors (see below), whose sum is σ = 127174320. Its totient is φ = 16202880.

The previous prime is 53581079. The next prime is 53581141. The reversal of 53581086 is 68018535.

53581086 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 53581086.

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, 11866 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (2649465).

Almost surely, 2^53581086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53581086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63587160).

53581086 is an abundant number, since it is smaller than the sum of its proper divisors (73593234).

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

53581086 is a wasteful number, since it uses less digits than its factorization.

53581086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961 (or 3958 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 53581086 is about 7319.9102453514. The cubic root of 53581086 is about 376.9963718057.

The spelling of 53581086 in words is "fifty-three million, five hundred eighty-one thousand, eighty-six".