55050551111 has 4 divisors (see below), whose sum is σ = 55953019224. Its totient is φ = 54148083000.

The previous prime is 55050551089. The next prime is 55050551131. The reversal of 55050551111 is 11115505055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11115505055 = 5 ⋅2223101011.

It is a cyclic number.

It is not a de Polignac number, because 55050551111 - 2¹⁸ = 55050288967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050551131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451233965 + ... + 451234086.

It is an arithmetic number, because the mean of its divisors is an integer number (13988254806).

Almost surely, 2^55050551111 is an apocalyptic number.

55050551111 is a deficient number, since it is larger than the sum of its proper divisors (902468113).

55050551111 is an equidigital number, since it uses as much as digits as its factorization.

55050551111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902468112.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 55050551111 in words is "fifty-five billion, fifty million, five hundred fifty-one thousand, one hundred eleven".