556801 has 8 divisors (see below), whose sum is σ = 673920. Its totient is φ = 449088.

The previous prime is 556799. The next prime is 556811. The reversal of 556801 is 108655.

556801 = 94² + 95² + ... + 135².

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 556801 - 2¹ = 556799 is a prime.

It is a Duffinian number.

556801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (556811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2⁵⁵⁶⁸⁰¹ is an apocalyptic number.

It is an amenable number.

556801 is a deficient number, since it is larger than the sum of its proper divisors (117119).

556801 is a wasteful number, since it uses less digits than its factorization.

556801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 556801 is about 746.1909943171. The cubic root of 556801 is about 82.2684538989.

The spelling of 556801 in words is "five hundred fifty-six thousand, eight hundred one".