506261089 has 2 divisors, whose sum is σ = 506261090. Its totient is φ = 506261088.

The previous prime is 506261069. The next prime is 506261167. The reversal of 506261089 is 980162605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497646864 + 8614225 = 22308^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 506261089 - 2⁵ = 506261057 is a prime.

It is not a weakly prime, because it can be changed into another prime (506261009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253130544 + 253130545.

It is an arithmetic number, because the mean of its divisors is an integer number (253130545).

Almost surely, 2^506261089 is an apocalyptic number.

It is an amenable number.

506261089 is a deficient number, since it is larger than the sum of its proper divisors (1).

506261089 is an equidigital number, since it uses as much as digits as its factorization.

506261089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 506261089 is about 22500.2464208728. The cubic root of 506261089 is about 796.9997460153. Note that the first 3 decimals are identical.

It can be divided in two parts, 50626 and 1089, that added together give a palindrome (51715).

The spelling of 506261089 in words is "five hundred six million, two hundred sixty-one thousand, eighty-nine".