2005051551501 has 8 divisors (see below), whose sum is σ = 2745656178784. Its totient is φ = 1300573979280.

The previous prime is 2005051551467. The next prime is 2005051551509. The reversal of 2005051551501 is 1051551505002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2005051551501 - 2⁹ = 2005051550989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005051551509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9031763635 + ... + 9031763856.

It is an arithmetic number, because the mean of its divisors is an integer number (343207022348).

Almost surely, 2^{2005051551501} is an apocalyptic number.

It is an amenable number.

2005051551501 is a deficient number, since it is larger than the sum of its proper divisors (740604627283).

2005051551501 is a wasteful number, since it uses less digits than its factorization.

2005051551501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18063527531.

The product of its (nonzero) digits is 6250, while the sum is 30.

It can be divided in two parts, 2005051 and 551501, that added together give a palindrome (2556552).

The spelling of 2005051551501 in words is "two trillion, five billion, fifty-one million, five hundred fifty-one thousand, five hundred one".