2254889521 has 4 divisors (see below), whose sum is σ = 2255688292. Its totient is φ = 2254090752.

The previous prime is 2254889453. The next prime is 2254889569. The reversal of 2254889521 is 1259884522.

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 1456261921 + 798627600 = 38161^2 + 28260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2254889521 - 2⁹ = 2254889009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2254889321) 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, 395136 + ... + 400801.

It is an arithmetic number, because the mean of its divisors is an integer number (563922073).

Almost surely, 2^2254889521 is an apocalyptic number.

It is an amenable number.

2254889521 is a deficient number, since it is larger than the sum of its proper divisors (798771).

2254889521 is an equidigital number, since it uses as much as digits as its factorization.

2254889521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798770.

The product of its digits is 460800, while the sum is 46.

The square root of 2254889521 is about 47485.6770089677. The cubic root of 2254889521 is about 1311.3192081435.

The spelling of 2254889521 in words is "two billion, two hundred fifty-four million, eight hundred eighty-nine thousand, five hundred twenty-one".