2252735221 has 4 divisors (see below), whose sum is σ = 2457529344. Its totient is φ = 2047941100.

The previous prime is 2252735203. The next prime is 2252735273. The reversal of 2252735221 is 1225372522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2252735221 - 2⁵ = 2252735189 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252735281) 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 3 ways as a sum of consecutive naturals, for example, 102397045 + ... + 102397066.

It is an arithmetic number, because the mean of its divisors is an integer number (614382336).

Almost surely, 2^2252735221 is an apocalyptic number.

It is an amenable number.

2252735221 is a deficient number, since it is larger than the sum of its proper divisors (204794123).

2252735221 is a wasteful number, since it uses less digits than its factorization.

2252735221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204794122.

The product of its digits is 16800, while the sum is 31.

The square root of 2252735221 is about 47462.9879063676. The cubic root of 2252735221 is about 1310.9014677808.

The spelling of 2252735221 in words is "two billion, two hundred fifty-two million, seven hundred thirty-five thousand, two hundred twenty-one".