555913 has 4 divisors (see below), whose sum is σ = 557460. Its totient is φ = 554368.

The previous prime is 555871. The next prime is 555931. The reversal of 555913 is 319555.

555913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 233289 = 568^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 555913 - 2¹⁷ = 424841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81 + ... + 1057.

It is an arithmetic number, because the mean of its divisors is an integer number (139365).

2⁵⁵⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

555913 is a deficient number, since it is larger than the sum of its proper divisors (1547).

555913 is an equidigital number, since it uses as much as digits as its factorization.

555913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546.

The product of its digits is 3375, while the sum is 28.

The square root of 555913 is about 745.5957349663. The cubic root of 555913 is about 82.2246960406.

The spelling of 555913 in words is "five hundred fifty-five thousand, nine hundred thirteen".