53133431520 has 192 divisors, whose sum is σ = 180372273984. Its totient is φ = 13069762560.

The previous prime is 53133431513. The next prime is 53133431539. The reversal of 53133431520 is 2513433135.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14231574 + ... + 14235306.

It is an arithmetic number, because the mean of its divisors is an integer number (939438927).

Almost surely, 2^53133431520 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 53133431520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90186136992).

53133431520 is an abundant number, since it is smaller than the sum of its proper divisors (127238842464).

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

53133431520 is a wasteful number, since it uses less digits than its factorization.

53133431520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045 (or 6037 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 53133431520 its reverse (2513433135), we get a palindrome (55646864655).

The spelling of 53133431520 in words is "fifty-three billion, one hundred thirty-three million, four hundred thirty-one thousand, five hundred twenty".