55572536844 has 108 divisors (see below), whose sum is σ = 156522483208. Its totient is φ = 16609380480.

The previous prime is 55572536839. The next prime is 55572536863. The reversal of 55572536844 is 44863527555.

55572536844 is a `hidden beast` number, since 5 + 5 + 572 + 5 + 3 + 68 + 4 + 4 = 666.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 230607 + ... + 405369.

Almost surely, 2^55572536844 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 55572536844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78261241604).

55572536844 is an abundant number, since it is smaller than the sum of its proper divisors (100949946364).

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

55572536844 is a wasteful number, since it uses less digits than its factorization.

55572536844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174868 (or 174852 counting only the distinct ones).

The product of its digits is 20160000, while the sum is 54.

It can be divided in two parts, 55572 and 536844, that added together give a triangular number (592416 = T₁₀₈₈).

The spelling of 55572536844 in words is "fifty-five billion, five hundred seventy-two million, five hundred thirty-six thousand, eight hundred forty-four".