505020215 has 24 divisors (see below), whose sum is σ = 724033152. Its totient is φ = 336934080.

The previous prime is 505020169. The next prime is 505020317. The reversal of 505020215 is 512020505.

It is not a de Polignac number, because 505020215 - 2⁶ = 505020151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18791 + ... + 36920.

It is an arithmetic number, because the mean of its divisors is an integer number (30168048).

Almost surely, 2^505020215 is an apocalyptic number.

505020215 is a deficient number, since it is larger than the sum of its proper divisors (219012937).

505020215 is a wasteful number, since it uses less digits than its factorization.

505020215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55767 (or 55760 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 505020215 is about 22472.6548275899. The cubic root of 505020215 is about 796.3480497540.

The spelling of 505020215 in words is "five hundred five million, twenty thousand, two hundred fifteen".