505206501 has 16 divisors (see below), whose sum is σ = 691503360. Its totient is φ = 327974400.

The previous prime is 505206497. The next prime is 505206509. The reversal of 505206501 is 105602505.

It is not a de Polignac number, because 505206501 - 2² = 505206497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505206509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2701 + ... + 31901.

It is an arithmetic number, because the mean of its divisors is an integer number (43218960).

Almost surely, 2^505206501 is an apocalyptic number.

It is an amenable number.

505206501 is a deficient number, since it is larger than the sum of its proper divisors (186296859).

505206501 is a wasteful number, since it uses less digits than its factorization.

505206501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29356.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 505206501 is about 22476.7991715902. The cubic root of 505206501 is about 796.4459535948.

The spelling of 505206501 in words is "five hundred five million, two hundred six thousand, five hundred one".