2005501301555 has 32 divisors (see below), whose sum is σ = 2536620364800. Its totient is φ = 1520019043200.

The previous prime is 2005501301543. The next prime is 2005501301567. The reversal of 2005501301555 is 5551031055002.

It is an interprime number because it is at equal distance from previous prime (2005501301543) and next prime (2005501301567).

It is not a de Polignac number, because 2005501301555 - 2⁸ = 2005501301299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1710626 + ... + 2633864.

It is an arithmetic number, because the mean of its divisors is an integer number (79269386400).

Almost surely, 2^{2005501301555} is an apocalyptic number.

2005501301555 is a deficient number, since it is larger than the sum of its proper divisors (531119063245).

2005501301555 is a wasteful number, since it uses less digits than its factorization.

2005501301555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923555.

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

Adding to 2005501301555 its reverse (5551031055002), we get a palindrome (7556532356557).

The spelling of 2005501301555 in words is "two trillion, five billion, five hundred one million, three hundred one thousand, five hundred fifty-five".