55211243052 has 96 divisors (see below), whose sum is σ = 148581748224. Its totient is φ = 15630451200.

The previous prime is 55211243047. The next prime is 55211243089. The reversal of 55211243052 is 25034211255.

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, 4265863 + ... + 4278785.

It is an arithmetic number, because the mean of its divisors is an integer number (1547726544).

Almost surely, 2^55211243052 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 55211243052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74290874112).

55211243052 is an abundant number, since it is smaller than the sum of its proper divisors (93370505172).

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

55211243052 is a wasteful number, since it uses less digits than its factorization.

55211243052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13399 (or 13397 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 55211243052 in words is "fifty-five billion, two hundred eleven million, two hundred forty-three thousand, fifty-two".