55333521024 has 128 divisors (see below), whose sum is σ = 149124326400. Its totient is φ = 18176510976.

The previous prime is 55333521011. The next prime is 55333521029. The reversal of 55333521024 is 42012533355.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (55333521029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14117337 + ... + 14121255.

It is an arithmetic number, because the mean of its divisors is an integer number (1165033800).

Almost surely, 2^55333521024 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 55333521024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74562163200).

55333521024 is an abundant number, since it is smaller than the sum of its proper divisors (93790805376).

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

55333521024 is a wasteful number, since it uses less digits than its factorization.

55333521024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 55333521024 in words is "fifty-five billion, three hundred thirty-three million, five hundred twenty-one thousand, twenty-four".