2005420053 has 16 divisors (see below), whose sum is σ = 3290946176. Its totient is φ = 1057803840.

The previous prime is 2005420051. The next prime is 2005420061. The reversal of 2005420053 is 3500245002.

It is not a de Polignac number, because 2005420053 - 2¹ = 2005420051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3672658 + ... + 3673203.

It is an arithmetic number, because the mean of its divisors is an integer number (205684136).

Almost surely, 2^2005420053 is an apocalyptic number.

It is an amenable number.

2005420053 is a deficient number, since it is larger than the sum of its proper divisors (1285526123).

2005420053 is a wasteful number, since it uses less digits than its factorization.

2005420053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345884.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2005420053 is about 44781.9165847108. The cubic root of 2005420053 is about 1261.0581631214.

Adding to 2005420053 its reverse (3500245002), we get a palindrome (5505665055).

The spelling of 2005420053 in words is "two billion, five million, four hundred twenty thousand, fifty-three".