505636461 has 12 divisors (see below), whose sum is σ = 796760640. Its totient is φ = 306446280.

The previous prime is 505636433. The next prime is 505636499. The reversal of 505636461 is 164636505.

505636461 is a `hidden beast` number, since 5 + 0 + 5 + 6 + 3 + 646 + 1 = 666.

It is not a de Polignac number, because 505636461 - 2⁵ = 505636429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505636361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2553621 + ... + 2553818.

It is an arithmetic number, because the mean of its divisors is an integer number (66396720).

Almost surely, 2^505636461 is an apocalyptic number.

It is an amenable number.

505636461 is a deficient number, since it is larger than the sum of its proper divisors (291124179).

505636461 is a wasteful number, since it uses less digits than its factorization.

505636461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107456 (or 5107453 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 505636461 is about 22486.3616665747. The cubic root of 505636461 is about 796.6718300777.

The spelling of 505636461 in words is "five hundred five million, six hundred thirty-six thousand, four hundred sixty-one".