5255633261 has 2 divisors, whose sum is σ = 5255633262. Its totient is φ = 5255633260.

The previous prime is 5255633233. The next prime is 5255633269. The reversal of 5255633261 is 1623365525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5025959236 + 229674025 = 70894^2 + 15155^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255633261 - 2⁶ = 5255633197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5255633269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627816630 + 2627816631.

It is an arithmetic number, because the mean of its divisors is an integer number (2627816631).

Almost surely, 2^5255633261 is an apocalyptic number.

It is an amenable number.

5255633261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255633261 is an equidigital number, since it uses as much as digits as its factorization.

5255633261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The square root of 5255633261 is about 72495.7465028121. The cubic root of 5255633261 is about 1738.6347308842.

Adding to 5255633261 its reverse (1623365525), we get a palindrome (6878998786).

The spelling of 5255633261 in words is "five billion, two hundred fifty-five million, six hundred thirty-three thousand, two hundred sixty-one".