557443 has 2 divisors, whose sum is σ = 557444. Its totient is φ = 557442.

The previous prime is 557423. The next prime is 557449. The reversal of 557443 is 344755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557443 - 2⁹ = 556931 is a prime.

It is not a weakly prime, because it can be changed into another prime (557449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278721 + 278722.

It is an arithmetic number, because the mean of its divisors is an integer number (278722).

2⁵⁵⁷⁴⁴³ is an apocalyptic number.

557443 is a deficient number, since it is larger than the sum of its proper divisors (1).

557443 is an equidigital number, since it uses as much as digits as its factorization.

557443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 28.

The square root of 557443 is about 746.6210551545. The cubic root of 557443 is about 82.3000606795.

It can be divided in two parts, 557 and 443, that added together give a cube (1000 = 10³).

The spelling of 557443 in words is "five hundred fifty-seven thousand, four hundred forty-three".