55550101111 has 2 divisors, whose sum is σ = 55550101112. Its totient is φ = 55550101110.

The previous prime is 55550101073. The next prime is 55550101121. The reversal of 55550101111 is 11110105555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55550101111 - 2¹¹ = 55550099063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55550101121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775050555 + 27775050556.

It is an arithmetic number, because the mean of its divisors is an integer number (27775050556).

Almost surely, 2^55550101111 is an apocalyptic number.

55550101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550101111 is an equidigital number, since it uses as much as digits as its factorization.

55550101111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 55550101111 its reverse (11110105555), we get a palindrome (66660206666).

The spelling of 55550101111 in words is "fifty-five billion, five hundred fifty million, one hundred one thousand, one hundred eleven".