53211133320 has 128 divisors (see below), whose sum is σ = 163647872640. Its totient is φ = 13833308160.

The previous prime is 53211133307. The next prime is 53211133357. The reversal of 53211133320 is 2333111235.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 8474022 + ... + 8480298.

It is an arithmetic number, because the mean of its divisors is an integer number (1278499005).

Almost surely, 2^53211133320 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 53211133320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81823936320).

53211133320 is an abundant number, since it is smaller than the sum of its proper divisors (110436739320).

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

53211133320 is a wasteful number, since it uses less digits than its factorization.

53211133320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055 (or 8051 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 53211133320 its reverse (2333111235), we get a palindrome (55544244555).

The spelling of 53211133320 in words is "fifty-three billion, two hundred eleven million, one hundred thirty-three thousand, three hundred twenty".