55105510051 has 4 divisors (see below), whose sum is σ = 55148195704. Its totient is φ = 55062824400.

The previous prime is 55105510003. The next prime is 55105510079. The reversal of 55105510051 is 15001550155.

55105510051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55105510051 - 2²⁷ = 54971292323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55105510091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21340890 + ... + 21343471.

It is an arithmetic number, because the mean of its divisors is an integer number (13787048926).

Almost surely, 2^55105510051 is an apocalyptic number.

55105510051 is a deficient number, since it is larger than the sum of its proper divisors (42685653).

55105510051 is a wasteful number, since it uses less digits than its factorization.

55105510051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42685652.

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

The spelling of 55105510051 in words is "fifty-five billion, one hundred five million, five hundred ten thousand, fifty-one".