53512686 has 24 divisors (see below), whose sum is σ = 116540424. Its totient is φ = 17745840.

The previous prime is 53512663. The next prime is 53512687. The reversal of 53512686 is 68621535.

53512686 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 53512686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53512687) 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 11 ways as a sum of consecutive naturals, for example, 4000 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (4855851).

Almost surely, 2^53512686 is an apocalyptic number.

53512686 is an abundant number, since it is smaller than the sum of its proper divisors (63027738).

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

53512686 is a wasteful number, since it uses less digits than its factorization.

53512686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296 (or 15293 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 53512686 is about 7315.2365648692. The cubic root of 53512686 is about 376.8358827580.

The spelling of 53512686 in words is "fifty-three million, five hundred twelve thousand, six hundred eighty-six".