556955 has 8 divisors (see below), whose sum is σ = 763872. Its totient is φ = 381888.

The previous prime is 556943. The next prime is 556957. The reversal of 556955 is 559655.

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

It is a cyclic number.

It is not a de Polignac number, because 556955 - 2⁴ = 556939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 15913 = 556955 / (5 + 5 + 6 + 9 + 5 + 5).

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (556957) 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, 7922 + ... + 7991.

It is an arithmetic number, because the mean of its divisors is an integer number (95484).

2⁵⁵⁶⁹⁵⁵ is an apocalyptic number.

556955 is a deficient number, since it is larger than the sum of its proper divisors (206917).

556955 is a wasteful number, since it uses less digits than its factorization.

556955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15925.

The product of its digits is 33750, while the sum is 35.

The square root of 556955 is about 746.2941779218. The cubic root of 556955 is about 82.2760378018.

The spelling of 556955 in words is "five hundred fifty-six thousand, nine hundred fifty-five".