557423 has 2 divisors, whose sum is σ = 557424. Its totient is φ = 557422.

The previous prime is 557377. The next prime is 557443. The reversal of 557423 is 324755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557423 - 2¹⁰ = 556399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557392 and 557401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278711 + 278712.

It is an arithmetic number, because the mean of its divisors is an integer number (278712).

2⁵⁵⁷⁴²³ is an apocalyptic number.

557423 is a deficient number, since it is larger than the sum of its proper divisors (1).

557423 is an equidigital number, since it uses as much as digits as its factorization.

557423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 26.

The square root of 557423 is about 746.6076613590. The cubic root of 557423 is about 82.2990764109.

The spelling of 557423 in words is "five hundred fifty-seven thousand, four hundred twenty-three".