555254021111 has 2 divisors, whose sum is σ = 555254021112. Its totient is φ = 555254021110.

The previous prime is 555254021033. The next prime is 555254021137. The reversal of 555254021111 is 111120452555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555254021111 - 2³⁸ = 280376114167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555254021191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277627010555 + 277627010556.

It is an arithmetic number, because the mean of its divisors is an integer number (277627010556).

Almost surely, 2^555254021111 is an apocalyptic number.

555254021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

555254021111 is an equidigital number, since it uses as much as digits as its factorization.

555254021111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10000, while the sum is 32.

Adding to 555254021111 its reverse (111120452555), we get a palindrome (666374473666).

The spelling of 555254021111 in words is "five hundred fifty-five billion, two hundred fifty-four million, twenty-one thousand, one hundred eleven".