556469 has 4 divisors (see below), whose sum is σ = 559020. Its totient is φ = 553920.

The previous prime is 556459. The next prime is 556477. The reversal of 556469 is 964655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964655 = 5 ⋅192931.

It can be written as a sum of positive squares in 2 ways, for example, as 442225 + 114244 = 665^2 + 338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556469 is a prime.

It is a super-2 number, since 2×556469² = 619315495922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556459) 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, 914 + ... + 1395.

It is an arithmetic number, because the mean of its divisors is an integer number (139755).

2⁵⁵⁶⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

556469 is a deficient number, since it is larger than the sum of its proper divisors (2551).

556469 is a wasteful number, since it uses less digits than its factorization.

556469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550.

The product of its digits is 32400, while the sum is 35.

The square root of 556469 is about 745.9684979944. The cubic root of 556469 is about 82.2520994281.

It can be divided in two parts, 55646 and 9, that added together give a palindrome (55655).

The spelling of 556469 in words is "five hundred fifty-six thousand, four hundred sixty-nine".