53343212520 has 64 divisors (see below), whose sum is σ = 172339614720. Its totient is φ = 13130636544.

The previous prime is 53343212497. The next prime is 53343212591. The reversal of 53343212520 is 2521234335.

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

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 15 ways as a sum of consecutive naturals, for example, 17095624 + ... + 17098743.

It is an arithmetic number, because the mean of its divisors is an integer number (2692806480).

Almost surely, 2^53343212520 is an apocalyptic number.

It is an amenable number.

53343212520 is an abundant number, since it is smaller than the sum of its proper divisors (118996402200).

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

53343212520 is a wasteful number, since it uses less digits than its factorization.

53343212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34194394 (or 34194390 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 53343212520 its reverse (2521234335), we get a palindrome (55864446855).

The spelling of 53343212520 in words is "fifty-three billion, three hundred forty-three million, two hundred twelve thousand, five hundred twenty".