556487 has 2 divisors, whose sum is σ = 556488. Its totient is φ = 556486.

The previous prime is 556483. The next prime is 556513. The reversal of 556487 is 784655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556487 - 2² = 556483 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278243 + 278244.

It is an arithmetic number, because the mean of its divisors is an integer number (278244).

2⁵⁵⁶⁴⁸⁷ is an apocalyptic number.

556487 is a deficient number, since it is larger than the sum of its proper divisors (1).

556487 is an equidigital number, since it uses as much as digits as its factorization.

556487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 556487 is about 745.9805627495. The cubic root of 556487 is about 82.2529862831.

It can be divided in two parts, 55648 and 7, that added together give a palindrome (55655).

The spelling of 556487 in words is "five hundred fifty-six thousand, four hundred eighty-seven".