2481828221 has 2 divisors, whose sum is σ = 2481828222. Its totient is φ = 2481828220.

The previous prime is 2481828199. The next prime is 2481828227. The reversal of 2481828221 is 1228281842.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2014663225 + 467164996 = 44885^2 + 21614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2481828221 - 2¹⁰ = 2481827197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2481828227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1240914110 + 1240914111.

It is an arithmetic number, because the mean of its divisors is an integer number (1240914111).

Almost surely, 2^2481828221 is an apocalyptic number.

It is an amenable number.

2481828221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2481828221 is an equidigital number, since it uses as much as digits as its factorization.

2481828221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32768, while the sum is 38.

The square root of 2481828221 is about 49817.9507908545. The cubic root of 2481828221 is about 1353.9124220530.

The spelling of 2481828221 in words is "two billion, four hundred eighty-one million, eight hundred twenty-eight thousand, two hundred twenty-one".