555997 has 8 divisors (see below), whose sum is σ = 630560. Its totient is φ = 486000.

The previous prime is 555967. The next prime is 556007. The reversal of 555997 is 799555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555997 is a prime.

It is a Duffinian number.

555997 is a lucky number.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555967) 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 7 ways as a sum of consecutive naturals, for example, 879 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (78820).

2⁵⁵⁵⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

555997 is a deficient number, since it is larger than the sum of its proper divisors (74563).

555997 is a wasteful number, since it uses less digits than its factorization.

555997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283.

The product of its digits is 70875, while the sum is 40.

The square root of 555997 is about 745.6520636329. The cubic root of 555997 is about 82.2288372921.

The spelling of 555997 in words is "five hundred fifty-five thousand, nine hundred ninety-seven".