557118943 has 2 divisors, whose sum is σ = 557118944. Its totient is φ = 557118942.

The previous prime is 557118911. The next prime is 557118959. The reversal of 557118943 is 349811755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557118943 - 2⁵ = 557118911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 557118943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557118973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278559471 + 278559472.

It is an arithmetic number, because the mean of its divisors is an integer number (278559472).

Almost surely, 2^557118943 is an apocalyptic number.

557118943 is a deficient number, since it is larger than the sum of its proper divisors (1).

557118943 is an equidigital number, since it uses as much as digits as its factorization.

557118943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 557118943 is about 23603.3671962286. The cubic root of 557118943 is about 822.8410982267.

The spelling of 557118943 in words is "five hundred fifty-seven million, one hundred eighteen thousand, nine hundred forty-three".