556705 has 4 divisors (see below), whose sum is σ = 668052. Its totient is φ = 445360.

The previous prime is 556697. The next prime is 556709. The reversal of 556705 is 507655.

556705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507655 = 5 ⋅101531.

It can be written as a sum of positive squares in 2 ways, for example, as 77841 + 478864 = 279^2 + 692^2 .

It is not a de Polignac number, because 556705 - 2³ = 556697 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 (556709) 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, 55666 + ... + 55675.

It is an arithmetic number, because the mean of its divisors is an integer number (167013).

2⁵⁵⁶⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

556705 is a deficient number, since it is larger than the sum of its proper divisors (111347).

556705 is a wasteful number, since it uses less digits than its factorization.

556705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111346.

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

The square root of 556705 is about 746.1266648499. The cubic root of 556705 is about 82.2637255636.

The spelling of 556705 in words is "five hundred fifty-six thousand, seven hundred five".