53112052322520 has 128 divisors (see below), whose sum is σ = 161011150755840. Its totient is φ = 14014384312320.

The previous prime is 53112052322507. The next prime is 53112052322591. The reversal of 53112052322520 is 2522325021135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57778905 + ... + 58690935.

It is an arithmetic number, because the mean of its divisors is an integer number (1257899615280).

Almost surely, 2^{53112052322520} 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 53112052322520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80505575377920).

53112052322520 is an abundant number, since it is smaller than the sum of its proper divisors (107899098433320).

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

53112052322520 is a wasteful number, since it uses less digits than its factorization.

53112052322520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917145 (or 917141 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 53112052322520 its reverse (2522325021135), we get a palindrome (55634377343655).

The spelling of 53112052322520 in words is "fifty-three trillion, one hundred twelve billion, fifty-two million, three hundred twenty-two thousand, five hundred twenty".