5255209129 has 2 divisors, whose sum is σ = 5255209130. Its totient is φ = 5255209128.

The previous prime is 5255209097. The next prime is 5255209151. The reversal of 5255209129 is 9219025525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4142853225 + 1112355904 = 64365^2 + 33352^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255209129 - 2⁵ = 5255209097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5255209091 and 5255209100.

It is not a weakly prime, because it can be changed into another prime (5255209189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627604564 + 2627604565.

It is an arithmetic number, because the mean of its divisors is an integer number (2627604565).

Almost surely, 2^5255209129 is an apocalyptic number.

It is an amenable number.

5255209129 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255209129 is an equidigital number, since it uses as much as digits as its factorization.

5255209129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 5255209129 is about 72492.8212238977. The cubic root of 5255209129 is about 1738.5879600876.

The spelling of 5255209129 in words is "five billion, two hundred fifty-five million, two hundred nine thousand, one hundred twenty-nine".