2001322253 has 16 divisors (see below), whose sum is σ = 2388061440. Its totient is φ = 1639879296.

The previous prime is 2001322201. The next prime is 2001322291. The reversal of 2001322253 is 3522231002.

It is a cyclic number.

It is not a de Polignac number, because 2001322253 - 2⁶ = 2001322189 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 (2001327253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446801 + ... + 451257.

It is an arithmetic number, because the mean of its divisors is an integer number (149253840).

Almost surely, 2^2001322253 is an apocalyptic number.

2001322253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2001322253 is a deficient number, since it is larger than the sum of its proper divisors (386739187).

2001322253 is a wasteful number, since it uses less digits than its factorization.

2001322253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2001322253 is about 44736.1403453628. The cubic root of 2001322253 is about 1260.1986444601.

Adding to 2001322253 its reverse (3522231002), we get a palindrome (5523553255).

The spelling of 2001322253 in words is "two billion, one million, three hundred twenty-two thousand, two hundred fifty-three".