550542453438358 has 4 divisors (see below), whose sum is σ = 825813680157540. Its totient is φ = 275271226719178.

The previous prime is 550542453438343. The next prime is 550542453438379. The reversal of 550542453438358 is 853834354245055.

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

It is a self number, because there is not a number n which added to its sum of digits gives 550542453438358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137635613359588 + ... + 137635613359591.

It is an arithmetic number, because the mean of its divisors is an integer number (206453420039385).

Almost surely, 2^{550542453438358} is an apocalyptic number.

550542453438358 is a deficient number, since it is larger than the sum of its proper divisors (275271226719182).

550542453438358 is a wasteful number, since it uses less digits than its factorization.

550542453438358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275271226719181.

The product of its (nonzero) digits is 691200000, while the sum is 64.

The spelling of 550542453438358 in words is "five hundred fifty trillion, five hundred forty-two billion, four hundred fifty-three million, four hundred thirty-eight thousand, three hundred fifty-eight".