555055550001 has 16 divisors (see below), whose sum is σ = 825745132800. Its totient is φ = 368488756944.

The previous prime is 555055549969. The next prime is 555055550003. The reversal of 555055550001 is 100055550555.

It is a happy number.

555055550001 is a `hidden beast` number, since 5 + 5 + 50 + 55 + 550 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 555055550001 - 2⁵ = 555055549969 is a prime.

It is a super-2 number, since 2×555055550001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (555055550003) 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 15 ways as a sum of consecutive naturals, for example, 43001106 + ... + 43014011.

It is an arithmetic number, because the mean of its divisors is an integer number (51609070800).

Almost surely, 2^555055550001 is an apocalyptic number.

It is an amenable number.

555055550001 is a deficient number, since it is larger than the sum of its proper divisors (270689582799).

555055550001 is a wasteful number, since it uses less digits than its factorization.

555055550001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86015365 (or 86015359 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 555055550001 in words is "five hundred fifty-five billion, fifty-five million, five hundred fifty thousand, one".