555020 has 12 divisors (see below), whose sum is σ = 1165584. Its totient is φ = 222000.

The previous prime is 554977. The next prime is 555029. The reversal of 555020 is 20555.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 555020.

It is not an unprimeable number, because it can be changed into a prime (555029) 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 3 ways as a sum of consecutive naturals, for example, 13856 + ... + 13895.

It is an arithmetic number, because the mean of its divisors is an integer number (97132).

2⁵⁵⁵⁰²⁰ is an apocalyptic number.

It is an amenable number.

555020 is an abundant number, since it is smaller than the sum of its proper divisors (610564).

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

555020 is a wasteful number, since it uses less digits than its factorization.

555020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27760 (or 27758 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 555020 is about 744.9966442877. The cubic root of 555020 is about 82.1806447799.

Adding to 555020 its reverse (20555), we get a palindrome (575575).

The spelling of 555020 in words is "five hundred fifty-five thousand, twenty".