55100500111 has 2 divisors, whose sum is σ = 55100500112. Its totient is φ = 55100500110.

The previous prime is 55100500069. The next prime is 55100500123. The reversal of 55100500111 is 11100500155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55100500111 - 2²⁷ = 54966282383 is a prime.

It is a super-2 number, since 2×55100500111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55100500811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550250055 + 27550250056.

It is an arithmetic number, because the mean of its divisors is an integer number (27550250056).

Almost surely, 2^55100500111 is an apocalyptic number.

55100500111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100500111 is an equidigital number, since it uses as much as digits as its factorization.

55100500111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 55100500111 in words is "fifty-five billion, one hundred million, five hundred thousand, one hundred eleven".