505050257505 has 16 divisors (see below), whose sum is σ = 809107216704. Its totient is φ = 269017869120.

The previous prime is 505050257479. The next prime is 505050257507. The reversal of 505050257505 is 505752050505.

It is a happy number.

It is not a de Polignac number, because 505050257505 - 2⁹ = 505050256993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505050257507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21379566 + ... + 21403175.

It is an arithmetic number, because the mean of its divisors is an integer number (50569201044).

Almost surely, 2^505050257505 is an apocalyptic number.

It is an amenable number.

505050257505 is a deficient number, since it is larger than the sum of its proper divisors (304056959199).

505050257505 is a wasteful number, since it uses less digits than its factorization.

505050257505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42783536.

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 505050257505 in words is "five hundred five billion, fifty million, two hundred fifty-seven thousand, five hundred five".