550421363124055 has 4 divisors (see below), whose sum is σ = 660505635748872. Its totient is φ = 440337090499240.

The previous prime is 550421363124029. The next prime is 550421363124071.

550421363124055 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 550421363124055 - 2⁵ = 550421363124023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550421363123996 and 550421363124014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55042136312401 + ... + 55042136312410.

It is an arithmetic number, because the mean of its divisors is an integer number (165126408937218).

Almost surely, 2^{550421363124055} is an apocalyptic number.

550421363124055 is a deficient number, since it is larger than the sum of its proper divisors (110084272624817).

550421363124055 is a wasteful number, since it uses less digits than its factorization.

550421363124055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110084272624816.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 550421363124055 in words is "five hundred fifty trillion, four hundred twenty-one billion, three hundred sixty-three million, one hundred twenty-four thousand, fifty-five".