555552 has 48 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 184896.

The previous prime is 555523. The next prime is 555557. The reversal of 555552 is 255555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (555557) by changing a digit.

555552 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543 + ... + 1185.

It is an arithmetic number, because the mean of its divisors is an integer number (33810).

2⁵⁵⁵⁵⁵² 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 555552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811440).

555552 is an abundant number, since it is smaller than the sum of its proper divisors (1067328).

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

555552 is a wasteful number, since it uses less digits than its factorization.

555552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 648 counting only the distinct ones).

The product of its digits is 6250, while the sum is 27.

The square root of 555552 is about 745.3536073569. The cubic root of 555552 is about 82.2068937689.

The spelling of 555552 in words is "five hundred fifty-five thousand, five hundred fifty-two".