557123011 has 2 divisors, whose sum is σ = 557123012. Its totient is φ = 557123010.

The previous prime is 557123003. The next prime is 557123027. The reversal of 557123011 is 110321755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557123011 - 2³ = 557123003 is a prime.

It is a super-2 number, since 2×557123011² = 620772098771412242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557123051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278561505 + 278561506.

It is an arithmetic number, because the mean of its divisors is an integer number (278561506).

Almost surely, 2^557123011 is an apocalyptic number.

557123011 is a deficient number, since it is larger than the sum of its proper divisors (1).

557123011 is an equidigital number, since it uses as much as digits as its factorization.

557123011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 557123011 is about 23603.4533702168. The cubic root of 557123011 is about 822.8431009764.

Adding to 557123011 its reverse (110321755), we get a palindrome (667444766).

It can be divided in two parts, 5571 and 23011, that added together give a palindrome (28582).

The spelling of 557123011 in words is "five hundred fifty-seven million, one hundred twenty-three thousand, eleven".