53313313320 has 256 divisors, whose sum is σ = 185615712000. Its totient is φ = 13597590528.

The previous prime is 53313313279. The next prime is 53313313337. The reversal of 53313313320 is 2331331335.

53313313320 is a `hidden beast` number, since 5 + 3 + 3 + 1 + 331 + 3 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2346334 + ... + 2368946.

It is an arithmetic number, because the mean of its divisors is an integer number (725061375).

Almost surely, 2^53313313320 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 53313313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92807856000).

53313313320 is an abundant number, since it is smaller than the sum of its proper divisors (132302398680).

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

53313313320 is a wasteful number, since it uses less digits than its factorization.

53313313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22729 (or 22719 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 27.

Adding to 53313313320 its reverse (2331331335), we get a palindrome (55644644655).

The spelling of 53313313320 in words is "fifty-three billion, three hundred thirteen million, three hundred thirteen thousand, three hundred twenty".