505051667 has 4 divisors (see below), whose sum is σ = 505446600. Its totient is φ = 504656736.

The previous prime is 505051639. The next prime is 505051699. The reversal of 505051667 is 766150505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766150505 = 5 ⋅153230101.

It is a cyclic number.

It is not a de Polignac number, because 505051667 - 2¹⁰ = 505050643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505051637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195542 + ... + 198107.

It is an arithmetic number, because the mean of its divisors is an integer number (126361650).

Almost surely, 2^505051667 is an apocalyptic number.

505051667 is a deficient number, since it is larger than the sum of its proper divisors (394933).

505051667 is a wasteful number, since it uses less digits than its factorization.

505051667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394932.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 505051667 is about 22473.3546005041. The cubic root of 505051667 is about 796.3645812499.

The spelling of 505051667 in words is "five hundred five million, fifty-one thousand, six hundred sixty-seven".