556477 has 2 divisors, whose sum is σ = 556478. Its totient is φ = 556476.

The previous prime is 556459. The next prime is 556483. The reversal of 556477 is 774655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 7396 = 741^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 556477 - 2¹⁹ = 32189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278238 + 278239.

It is an arithmetic number, because the mean of its divisors is an integer number (278239).

2⁵⁵⁶⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

556477 is a deficient number, since it is larger than the sum of its proper divisors (1).

556477 is an equidigital number, since it uses as much as digits as its factorization.

556477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 34.

The square root of 556477 is about 745.9738601318. The cubic root of 556477 is about 82.2524935882.

The spelling of 556477 in words is "five hundred fifty-six thousand, four hundred seventy-seven".