2252443521 has 32 divisors (see below), whose sum is σ = 3331630080. Its totient is φ = 1347192000.

The previous prime is 2252443519. The next prime is 2252443537. The reversal of 2252443521 is 1253442522.

It is not a de Polignac number, because 2252443521 - 2¹ = 2252443519 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2252443541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123906 + ... + 140916.

It is an arithmetic number, because the mean of its divisors is an integer number (104113440).

Almost surely, 2^2252443521 is an apocalyptic number.

It is an amenable number.

2252443521 is a deficient number, since it is larger than the sum of its proper divisors (1079186559).

2252443521 is a wasteful number, since it uses less digits than its factorization.

2252443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157.

The product of its digits is 19200, while the sum is 30.

The square root of 2252443521 is about 47459.9148861437. The cubic root of 2252443521 is about 1310.8448837579.

Subtracting from 2252443521 its reverse (1253442522), we obtain a palindrome (999000999).

The spelling of 2252443521 in words is "two billion, two hundred fifty-two million, four hundred forty-three thousand, five hundred twenty-one".