53139360 has 96 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 14056448.

The previous prime is 53139347. The next prime is 53139367. The reversal of 53139360 is 6393135.

53139360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (53139367) 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 15 ways as a sum of consecutive naturals, for example, 71149 + ... + 71891.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^53139360 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 53139360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84369600).

53139360 is an abundant number, since it is smaller than the sum of its proper divisors (115599840).

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

53139360 is a wasteful number, since it uses less digits than its factorization.

53139360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 53139360 is about 7289.6748898699. The cubic root of 53139360 is about 375.9575174577.

The spelling of 53139360 in words is "fifty-three million, one hundred thirty-nine thousand, three hundred sixty".