556851 has 8 divisors (see below), whose sum is σ = 745920. Its totient is φ = 369512.

The previous prime is 556849. The next prime is 556859. The reversal of 556851 is 158655.

It is a happy number.

556851 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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 556851 - 2¹ = 556849 is a prime.

556851 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (556859) 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, 1036 + ... + 1478.

It is an arithmetic number, because the mean of its divisors is an integer number (93240).

2⁵⁵⁶⁸⁵¹ is an apocalyptic number.

556851 is a deficient number, since it is larger than the sum of its proper divisors (189069).

556851 is a wasteful number, since it uses less digits than its factorization.

556851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 6000, while the sum is 30.

The square root of 556851 is about 746.2244970517. The cubic root of 556851 is about 82.2709163583.

The spelling of 556851 in words is "five hundred fifty-six thousand, eight hundred fifty-one".