55105105051 has 4 divisors (see below), whose sum is σ = 55113834672. Its totient is φ = 55096375432.

The previous prime is 55105105019. The next prime is 55105105103. The reversal of 55105105051 is 15050150155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55105105051 - 2⁵ = 55105105019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55105105751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355335 + ... + 4367968.

It is an arithmetic number, because the mean of its divisors is an integer number (13778458668).

Almost surely, 2^55105105051 is an apocalyptic number.

55105105051 is a deficient number, since it is larger than the sum of its proper divisors (8729621).

55105105051 is an equidigital number, since it uses as much as digits as its factorization.

55105105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729620.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 55105105051 in words is "fifty-five billion, one hundred five million, one hundred five thousand, fifty-one".