550005055001 has 4 divisors (see below), whose sum is σ = 550008748752. Its totient is φ = 550001361252.

The previous prime is 550005054997. The next prime is 550005055007. The reversal of 550005055001 is 100550500055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550005055001 - 2² = 550005054997 is a prime.

It is a super-2 number, since 2×550005055001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550005055007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613711 + ... + 1924596.

It is an arithmetic number, because the mean of its divisors is an integer number (137502187188).

Almost surely, 2^550005055001 is an apocalyptic number.

It is an amenable number.

550005055001 is a deficient number, since it is larger than the sum of its proper divisors (3693751).

550005055001 is a wasteful number, since it uses less digits than its factorization.

550005055001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693750.

The product of its (nonzero) digits is 3125, while the sum is 26.

Adding to 550005055001 its reverse (100550500055), we get a palindrome (650555555056).

The spelling of 550005055001 in words is "five hundred fifty billion, five million, fifty-five thousand, one".