556251 has 8 divisors (see below), whose sum is σ = 747024. Its totient is φ = 368160.

The previous prime is 556243. The next prime is 556253. The reversal of 556251 is 152655.

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

It is not a de Polignac number, because 556251 - 2³ = 556243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556253) 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, 120 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (93378).

2⁵⁵⁶²⁵¹ is an apocalyptic number.

556251 is a deficient number, since it is larger than the sum of its proper divisors (190773).

556251 is a wasteful number, since it uses less digits than its factorization.

556251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its digits is 1500, while the sum is 24.

The square root of 556251 is about 745.8223649100. The cubic root of 556251 is about 82.2413571108.

The spelling of 556251 in words is "five hundred fifty-six thousand, two hundred fifty-one".