550005105501 has 32 divisors (see below), whose sum is σ = 837231795840. Its totient is φ = 356656608000.

The previous prime is 550005105469. The next prime is 550005105553. The reversal of 550005105501 is 105501500055.

550005105501 is a `hidden beast` number, since 5 + 50 + 0 + 0 + 5 + 105 + 501 = 666.

550005105501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550005105501 - 2⁵ = 550005105469 is a prime.

It is a super-2 number, since 2×550005105501² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550005101501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 703050 + ... + 1262651.

It is an arithmetic number, because the mean of its divisors is an integer number (26163493620).

Almost surely, 2^550005105501 is an apocalyptic number.

It is an amenable number.

550005105501 is a deficient number, since it is larger than the sum of its proper divisors (287226690339).

550005105501 is a wasteful number, since it uses less digits than its factorization.

550005105501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965994 (or 1965988 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

Adding to 550005105501 its reverse (105501500055), we get a palindrome (655506605556).

The spelling of 550005105501 in words is "five hundred fifty billion, five million, one hundred five thousand, five hundred one".