505050505049 has 2 divisors, whose sum is σ = 505050505050. Its totient is φ = 505050505048.

The previous prime is 505050505039. The next prime is 505050505061. The reversal of 505050505049 is 940505050505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503361870400 + 1688634649 = 709480^2 + 41093^2 .

It is a cyclic number.

It is not a de Polignac number, because 505050505049 - 2²⁰ = 505049456473 is a prime.

It is not a weakly prime, because it can be changed into another prime (505050505039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252525252524 + 252525252525.

It is an arithmetic number, because the mean of its divisors is an integer number (252525252525).

Almost surely, 2^505050505049 is an apocalyptic number.

It is an amenable number.

505050505049 is a deficient number, since it is larger than the sum of its proper divisors (1).

505050505049 is an equidigital number, since it uses as much as digits as its factorization.

505050505049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 505050505049 in words is "five hundred five billion, fifty million, five hundred five thousand, forty-nine".