53115760 has 40 divisors (see below), whose sum is σ = 124340256. Its totient is φ = 21100800.

The previous prime is 53115737. The next prime is 53115847. The reversal of 53115760 is 6751135.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9882 + ... + 14278.

Almost surely, 2^53115760 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 53115760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62170128).

53115760 is an abundant number, since it is smaller than the sum of its proper divisors (71224496).

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

53115760 is a wasteful number, since it uses less digits than its factorization.

53115760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 53115760 is about 7288.0559822219. The cubic root of 53115760 is about 375.9018530612.

Adding to 53115760 its reverse (6751135), we get a palindrome (59866895).

The spelling of 53115760 in words is "fifty-three million, one hundred fifteen thousand, seven hundred sixty".