505225166515 has 4 divisors (see below), whose sum is σ = 606270199824. Its totient is φ = 404180133208.

The previous prime is 505225166489. The next prime is 505225166521. The reversal of 505225166515 is 515661522505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505225166515 - 2¹⁹ = 505224642227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50522516647 + ... + 50522516656.

It is an arithmetic number, because the mean of its divisors is an integer number (151567549956).

Almost surely, 2^505225166515 is an apocalyptic number.

505225166515 is a deficient number, since it is larger than the sum of its proper divisors (101045033309).

505225166515 is a wasteful number, since it uses less digits than its factorization.

505225166515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101045033308.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 505225166515 in words is "five hundred five billion, two hundred twenty-five million, one hundred sixty-six thousand, five hundred fifteen".