53345131320 has 128 divisors (see below), whose sum is σ = 172721989440. Its totient is φ = 13102448640.

The previous prime is 53345131277. The next prime is 53345131331. The reversal of 53345131320 is 2313154335.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682072 + ... + 756248.

Almost surely, 2^53345131320 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 53345131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86360994720).

53345131320 is an abundant number, since it is smaller than the sum of its proper divisors (119376858120).

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

53345131320 is a wasteful number, since it uses less digits than its factorization.

53345131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74665 (or 74661 counting only the distinct ones).

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

Adding to 53345131320 its reverse (2313154335), we get a palindrome (55658285655).

The spelling of 53345131320 in words is "fifty-three billion, three hundred forty-five million, one hundred thirty-one thousand, three hundred twenty".