2044352521 has 4 divisors (see below), whose sum is σ = 2046371652. Its totient is φ = 2042333392.

The previous prime is 2044352507. The next prime is 2044352533. The reversal of 2044352521 is 1252534402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 314707600 + 1729644921 = 17740^2 + 41589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044352521 - 2²³ = 2035963913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2044352521.

It is not an unprimeable number, because it can be changed into a prime (2044352501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008046 + ... + 1010071.

It is an arithmetic number, because the mean of its divisors is an integer number (511592913).

Almost surely, 2^2044352521 is an apocalyptic number.

It is an amenable number.

2044352521 is a deficient number, since it is larger than the sum of its proper divisors (2019131).

2044352521 is a wasteful number, since it uses less digits than its factorization.

2044352521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019130.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2044352521 is about 45214.5167064738. The cubic root of 2044352521 is about 1269.1664857496.

Adding to 2044352521 its reverse (1252534402), we get a palindrome (3296886923).

It can be divided in two parts, 204 and 4352521, that added together give a triangular number (4352725 = T₂₉₅₀).

The spelling of 2044352521 in words is "two billion, forty-four million, three hundred fifty-two thousand, five hundred twenty-one".