555897 has 4 divisors (see below), whose sum is σ = 741200. Its totient is φ = 370596.

The previous prime is 555871. The next prime is 555931. The reversal of 555897 is 798555.

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 not a de Polignac number, because 555897 - 2¹¹ = 553849 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555827) 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, 92647 + ... + 92652.

It is an arithmetic number, because the mean of its divisors is an integer number (185300).

2⁵⁵⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

555897 is a deficient number, since it is larger than the sum of its proper divisors (185303).

555897 is a wasteful number, since it uses less digits than its factorization.

555897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185302.

The product of its digits is 63000, while the sum is 39.

The square root of 555897 is about 745.5850052140. The cubic root of 555897 is about 82.2239071835.

The spelling of 555897 in words is "five hundred fifty-five thousand, eight hundred ninety-seven".