53569140 has 48 divisors (see below), whose sum is σ = 151388160. Its totient is φ = 14152320.

The previous prime is 53569133. The next prime is 53569157. The reversal of 53569140 is 4196535.

It is a happy number.

53569140 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 15 ways as a sum of consecutive naturals, for example, 2445 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (3153920).

Almost surely, 2^53569140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53569140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75694080).

53569140 is an abundant number, since it is smaller than the sum of its proper divisors (97819020).

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

53569140 is a wasteful number, since it uses less digits than its factorization.

53569140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312 (or 8310 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 53569140 is about 7319.0942062526. The cubic root of 53569140 is about 376.9683523824.

The spelling of 53569140 in words is "fifty-three million, five hundred sixty-nine thousand, one hundred forty".