55528447752 has 60 divisors (see below), whose sum is σ = 155547872205. Its totient is φ = 18507483072.

The previous prime is 55528447717. The next prime is 55528447757. The reversal of 55528447752 is 25774482555.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

55528447752 is a `hidden beast` number, since 5 + 5 + 528 + 4 + 47 + 75 + 2 = 666.

55528447752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41101074756 + 14427372996 = 202734^2 + 120114^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166626.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55528447757) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5993908 + ... + 6003164.

Almost surely, 2^55528447752 is an apocalyptic number.

It is an amenable number.

55528447752 is an abundant number, since it is smaller than the sum of its proper divisors (100019424453).

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

55528447752 is an frugal number, since it uses more digits than its factorization.

55528447752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18532 (or 9262 counting only the distinct ones).

The product of its digits is 15680000, while the sum is 54.

The spelling of 55528447752 in words is "fifty-five billion, five hundred twenty-eight million, four hundred forty-seven thousand, seven hundred fifty-two".