556057 has 4 divisors (see below), whose sum is σ = 567936. Its totient is φ = 544180.

The previous prime is 556051. The next prime is 556067. The reversal of 556057 is 750655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750655 = 5 ⋅150131.

It is a cyclic number.

It is not a de Polignac number, because 556057 - 2¹⁹ = 31769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556051) 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, 5869 + ... + 5962.

It is an arithmetic number, because the mean of its divisors is an integer number (141984).

2⁵⁵⁶⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

556057 is a deficient number, since it is larger than the sum of its proper divisors (11879).

556057 is a wasteful number, since it uses less digits than its factorization.

556057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 556057 is about 745.6922957896. The cubic root of 556057 is about 82.2317950735.

The spelling of 556057 in words is "five hundred fifty-six thousand, fifty-seven".