557043 has 4 divisors (see below), whose sum is σ = 742728. Its totient is φ = 371360.

The previous prime is 557041. The next prime is 557057. The reversal of 557043 is 340755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557043 - 2¹ = 557041 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 557043.

It is not an unprimeable number, because it can be changed into a prime (557041) 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, 92838 + ... + 92843.

It is an arithmetic number, because the mean of its divisors is an integer number (185682).

2⁵⁵⁷⁰⁴³ is an apocalyptic number.

557043 is a deficient number, since it is larger than the sum of its proper divisors (185685).

557043 is a wasteful number, since it uses less digits than its factorization.

557043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185684.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 557043 is about 746.3531335769. The cubic root of 557043 is about 82.2803708329.

Adding to 557043 its reverse (340755), we get a palindrome (897798).

The spelling of 557043 in words is "five hundred fifty-seven thousand, forty-three".