53116520 has 64 divisors (see below), whose sum is σ = 123638400. Its totient is φ = 20527360.

The previous prime is 53116493. The next prime is 53116529. The reversal of 53116520 is 2561135.

It is not an unprimeable number, because it can be changed into a prime (53116529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167402 + ... + 167718.

It is an arithmetic number, because the mean of its divisors is an integer number (1931850).

Almost surely, 2^53116520 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 53116520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61819200).

53116520 is an abundant number, since it is smaller than the sum of its proper divisors (70521880).

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

53116520 is a wasteful number, since it uses less digits than its factorization.

53116520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 53116520 is about 7288.1081221398. The cubic root of 53116520 is about 375.9036459003.

Adding to 53116520 its reverse (2561135), we get a palindrome (55677655).

The spelling of 53116520 in words is "fifty-three million, one hundred sixteen thousand, five hundred twenty".