556151 has 4 divisors (see below), whose sum is σ = 568032. Its totient is φ = 544272.

The previous prime is 556123. The next prime is 556159. The reversal of 556151 is 151655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5870 + ... + 5963.

It is an arithmetic number, because the mean of its divisors is an integer number (142008).

2⁵⁵⁶¹⁵¹ is an apocalyptic number.

556151 is a deficient number, since it is larger than the sum of its proper divisors (11881).

556151 is a wasteful number, since it uses less digits than its factorization.

556151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880.

The product of its digits is 750, while the sum is 23.

The square root of 556151 is about 745.7553218047. The cubic root of 556151 is about 82.2364285033.

Subtracting from 556151 its reverse (151655), we obtain a square (404496 = 636²).

It can be divided in two parts, 556 and 151, that added together give a palindrome (707).

The spelling of 556151 in words is "five hundred fifty-six thousand, one hundred fifty-one".