555001 has 4 divisors (see below), whose sum is σ = 567952. Its totient is φ = 542052.

The previous prime is 554977. The next prime is 555029. The reversal of 555001 is 100555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 555001 - 2⁵ = 554969 is a prime.

It is a super-2 number, since 2×555001² = 616052220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6411 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (141988).

2⁵⁵⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

555001 is a deficient number, since it is larger than the sum of its proper divisors (12951).

555001 is a wasteful number, since it uses less digits than its factorization.

555001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 555001 is about 744.9838924433. The cubic root of 555001 is about 82.1797070059.

Adding to 555001 its reverse (100555), we get a palindrome (655556).

The spelling of 555001 in words is "five hundred fifty-five thousand, one".