550556000501 has 4 divisors (see below), whose sum is σ = 592906462092. Its totient is φ = 508205538912.

The previous prime is 550556000461. The next prime is 550556000503. The reversal of 550556000501 is 105000655055.

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 340974244900 + 209581755601 = 583930^2 + 457801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550556000501 is a prime.

It is a super-2 number, since 2×550556000501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550556000503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21175230776 + ... + 21175230801.

It is an arithmetic number, because the mean of its divisors is an integer number (148226615523).

Almost surely, 2^550556000501 is an apocalyptic number.

It is an amenable number.

550556000501 is a deficient number, since it is larger than the sum of its proper divisors (42350461591).

550556000501 is a wasteful number, since it uses less digits than its factorization.

550556000501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42350461590.

The product of its (nonzero) digits is 18750, while the sum is 32.

Adding to 550556000501 its reverse (105000655055), we get a palindrome (655556655556).

The spelling of 550556000501 in words is "five hundred fifty billion, five hundred fifty-six million, five hundred one", and thus it is an aban number.