2005021522 has 16 divisors (see below), whose sum is σ = 3437763840. Its totient is φ = 859148928.

The previous prime is 2005021519. The next prime is 2005021541. The reversal of 2005021522 is 2251205002.

It is a super-2 number, since 2×2005021522² = 8040222607366392968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2005021522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132354 + ... + 146722.

It is an arithmetic number, because the mean of its divisors is an integer number (214860240).

Almost surely, 2^2005021522 is an apocalyptic number.

2005021522 is a deficient number, since it is larger than the sum of its proper divisors (1432742318).

2005021522 is a wasteful number, since it uses less digits than its factorization.

2005021522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24345.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2005021522 is about 44777.4666768901. The cubic root of 2005021522 is about 1260.9746221752.

Adding to 2005021522 its reverse (2251205002), we get a palindrome (4256226524).

The spelling of 2005021522 in words is "two billion, five million, twenty-one thousand, five hundred twenty-two".