2005420055 has 8 divisors (see below), whose sum is σ = 2422656000. Its totient is φ = 1593568096.

The previous prime is 2005420051. The next prime is 2005420061. The reversal of 2005420055 is 5500245002.

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

It is a cyclic number.

It is not a de Polignac number, because 2005420055 - 2² = 2005420051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2005420055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005420051) 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, 1345175 + ... + 1346664.

It is an arithmetic number, because the mean of its divisors is an integer number (302832000).

Almost surely, 2^2005420055 is an apocalyptic number.

2005420055 is a deficient number, since it is larger than the sum of its proper divisors (417235945).

2005420055 is a wasteful number, since it uses less digits than its factorization.

2005420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691993.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2005420055 is about 44781.9166070413. The cubic root of 2005420055 is about 1261.0581635406.

Adding to 2005420055 its reverse (5500245002), we get a palindrome (7505665057).

The spelling of 2005420055 in words is "two billion, five million, four hundred twenty thousand, fifty-five".