2005501422051 has 24 divisors (see below), whose sum is σ = 2900362705344. Its totient is φ = 1335373902720.

The previous prime is 2005501422019. The next prime is 2005501422053. The reversal of 2005501422051 is 1502241055002.

2005501422051 is a `hidden beast` number, since 2 + 0 + 0 + 550 + 1 + 42 + 20 + 51 = 666.

It is not a de Polignac number, because 2005501422051 - 2⁵ = 2005501422019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005501422053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26557990 + ... + 26633396.

It is an arithmetic number, because the mean of its divisors is an integer number (120848446056).

Almost surely, 2^{2005501422051} is an apocalyptic number.

2005501422051 is a deficient number, since it is larger than the sum of its proper divisors (894861283293).

2005501422051 is a wasteful number, since it uses less digits than its factorization.

2005501422051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78971 (or 78968 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 2005501422051 its reverse (1502241055002), we get a palindrome (3507742477053).

The spelling of 2005501422051 in words is "two trillion, five billion, five hundred one million, four hundred twenty-two thousand, fifty-one".