505056501 has 24 divisors (see below), whose sum is σ = 746763264. Its totient is φ = 328782240.

The previous prime is 505056493. The next prime is 505056511. The reversal of 505056501 is 105650505.

505056501 is a `hidden beast` number, since 5 + 0 + 5 + 0 + 5 + 650 + 1 = 666.

It is not a de Polignac number, because 505056501 - 2³ = 505056493 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505056511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227740 + ... + 229946.

It is an arithmetic number, because the mean of its divisors is an integer number (31115136).

Almost surely, 2^505056501 is an apocalyptic number.

It is an amenable number.

505056501 is a deficient number, since it is larger than the sum of its proper divisors (241706763).

505056501 is a wasteful number, since it uses less digits than its factorization.

505056501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 505056501 is about 22473.4621498335. The cubic root of 505056501 is about 796.3671219894.

The spelling of 505056501 in words is "five hundred five million, fifty-six thousand, five hundred one".