55555505005001 has 32 divisors (see below), whose sum is σ = 57950238025728. Its totient is φ = 53222792878080.

The previous prime is 55555505004947. The next prime is 55555505005043. The reversal of 55555505005001 is 10050050555555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55555505005001 is a prime.

It is a super-2 number, since 2×55555505005001² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55555505005001.

It is not an unprimeable number, because it can be changed into a prime (55555505002001) 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 31 ways as a sum of consecutive naturals, for example, 2007556901 + ... + 2007584573.

It is an arithmetic number, because the mean of its divisors is an integer number (1810944938304).

Almost surely, 2^{55555505005001} is an apocalyptic number.

It is an amenable number.

55555505005001 is a deficient number, since it is larger than the sum of its proper divisors (2394733020727).

55555505005001 is a wasteful number, since it uses less digits than its factorization.

55555505005001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32201.

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 55555505005001 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred five million, five thousand, one".