5255521241 has 2 divisors, whose sum is σ = 5255521242. Its totient is φ = 5255521240.

The previous prime is 5255521217. The next prime is 5255521261. The reversal of 5255521241 is 1421255525.

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., 4650558025 + 604963216 = 68195^2 + 24596^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255521241 - 2⁶ = 5255521177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5255521198 and 5255521207.

It is not a weakly prime, because it can be changed into another prime (5255521261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627760620 + 2627760621.

It is an arithmetic number, because the mean of its divisors is an integer number (2627760621).

Almost surely, 2^5255521241 is an apocalyptic number.

It is an amenable number.

5255521241 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255521241 is an equidigital number, since it uses as much as digits as its factorization.

5255521241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20000, while the sum is 32.

The square root of 5255521241 is about 72494.9739016437. The cubic root of 5255521241 is about 1738.6223782182.

Adding to 5255521241 its reverse (1421255525), we get a palindrome (6676776766).

The spelling of 5255521241 in words is "five billion, two hundred fifty-five million, five hundred twenty-one thousand, two hundred forty-one".