55000050055 has 4 divisors (see below), whose sum is σ = 66000060072. Its totient is φ = 44000040040.

The previous prime is 55000050031. The next prime is 55000050059. The reversal of 55000050055 is 55005000055.

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

It is not a de Polignac number, because 55000050055 - 2¹⁵ = 55000017287 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 (55000050059) 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, 5500005001 + ... + 5500005010.

It is an arithmetic number, because the mean of its divisors is an integer number (16500015018).

Almost surely, 2^55000050055 is an apocalyptic number.

55000050055 is a deficient number, since it is larger than the sum of its proper divisors (11000010017).

55000050055 is a wasteful number, since it uses less digits than its factorization.

55000050055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000010016.

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 55000050055 in words is "fifty-five billion, fifty thousand, fifty-five".