550111056001 has 4 divisors (see below), whose sum is σ = 592427291092. Its totient is φ = 507794820912.

The previous prime is 550111055999. The next prime is 550111056029. The reversal of 550111056001 is 100650111055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 282486935025 + 267624120976 = 531495^2 + 517324^2 .

It is a cyclic number.

It is not a de Polignac number, because 550111056001 - 2¹ = 550111055999 is a prime.

It is a super-2 number, since 2×550111056001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550111050001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21158117526 + ... + 21158117551.

It is an arithmetic number, because the mean of its divisors is an integer number (148106822773).

Almost surely, 2^550111056001 is an apocalyptic number.

It is an amenable number.

550111056001 is a deficient number, since it is larger than the sum of its proper divisors (42316235091).

550111056001 is a wasteful number, since it uses less digits than its factorization.

550111056001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42316235090.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 550111056001 its reverse (100650111055), we get a palindrome (650761167056).

The spelling of 550111056001 in words is "five hundred fifty billion, one hundred eleven million, fifty-six thousand, one".