55200331020 has 96 divisors (see below), whose sum is σ = 162944812800. Its totient is φ = 13923995904.

The previous prime is 55200331019. The next prime is 55200331033. The reversal of 55200331020 is 2013300255.

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, 714522 + ... + 787998.

It is an arithmetic number, because the mean of its divisors is an integer number (1697341800).

Almost surely, 2^55200331020 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 55200331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81472406400).

55200331020 is an abundant number, since it is smaller than the sum of its proper divisors (107744481780).

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

55200331020 is a wasteful number, since it uses less digits than its factorization.

55200331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74167 (or 74165 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

Adding to 55200331020 its reverse (2013300255), we get a palindrome (57213631275).

The spelling of 55200331020 in words is "fifty-five billion, two hundred million, three hundred thirty-one thousand, twenty".