555522 has 32 divisors (see below), whose sum is σ = 1278720. Its totient is φ = 159120.

The previous prime is 555521. The next prime is 555523. The reversal of 555522 is 225555.

It is an interprime number because it is at equal distance from previous prime (555521) and next prime (555523).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 555492 and 555501.

It is not an unprimeable number, because it can be changed into a prime (555521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1033 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2⁵⁵⁵⁵²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639360).

555522 is an abundant number, since it is smaller than the sum of its proper divisors (723198).

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

555522 is a wasteful number, since it uses less digits than its factorization.

555522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its digits is 2500, while the sum is 24.

The square root of 555522 is about 745.3334824090. Note that the first 3 decimals coincide. The cubic root of 555522 is about 82.2054140087.

The spelling of 555522 in words is "five hundred fifty-five thousand, five hundred twenty-two".