557643011 has 2 divisors, whose sum is σ = 557643012. Its totient is φ = 557643010.

The previous prime is 557642983. The next prime is 557643013. The reversal of 557643011 is 110346755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557643011 - 2¹⁴ = 557626627 is a prime.

It is a super-2 number, since 2×557643011² = 621931455434292242, which contains 22 as substring.

Together with 557643013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (557643013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278821505 + 278821506.

It is an arithmetic number, because the mean of its divisors is an integer number (278821506).

Almost surely, 2^557643011 is an apocalyptic number.

557643011 is a deficient number, since it is larger than the sum of its proper divisors (1).

557643011 is an equidigital number, since it uses as much as digits as its factorization.

557643011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 557643011 is about 23614.4661383653. The cubic root of 557643011 is about 823.0990261196.

Adding to 557643011 its reverse (110346755), we get a palindrome (667989766).

The spelling of 557643011 in words is "five hundred fifty-seven million, six hundred forty-three thousand, eleven".