505016377 has 8 divisors (see below), whose sum is σ = 513820040. Its totient is φ = 496229760.

The previous prime is 505016339. The next prime is 505016401. The reversal of 505016377 is 773610505.

It can be written as a sum of positive squares in 4 ways, for example, as 118461456 + 386554921 = 10884^2 + 19661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505016377 - 2⁷ = 505016249 is a prime.

It is a super-2 number, since 2×505016377² = 510083082076412258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505016077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65203 + ... + 72535.

It is an arithmetic number, because the mean of its divisors is an integer number (64227505).

Almost surely, 2^505016377 is an apocalyptic number.

It is an amenable number.

505016377 is a deficient number, since it is larger than the sum of its proper divisors (8803663).

505016377 is a wasteful number, since it uses less digits than its factorization.

505016377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 505016377 is about 22472.5694347576. The cubic root of 505016377 is about 796.3460324146.

The spelling of 505016377 in words is "five hundred five million, sixteen thousand, three hundred seventy-seven".