505505061 has 24 divisors (see below), whose sum is σ = 756756000. Its totient is φ = 324778272.

The previous prime is 505505041. The next prime is 505505083. The reversal of 505505061 is 160505505.

505505061 is a `hidden beast` number, since 5 + 0 + 550 + 50 + 61 = 666.

It is not a de Polignac number, because 505505061 - 2⁶ = 505504997 is a prime.

It is a super-2 number, since 2×505505061² = 511070733393227442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505505041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170530 + ... + 173468.

It is an arithmetic number, because the mean of its divisors is an integer number (31531500).

Almost surely, 2^505505061 is an apocalyptic number.

It is an amenable number.

505505061 is a deficient number, since it is larger than the sum of its proper divisors (251250939).

505505061 is a wasteful number, since it uses less digits than its factorization.

505505061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633 (or 3630 counting only the distinct ones).

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

The square root of 505505061 is about 22483.4397057034. The cubic root of 505505061 is about 796.6028135966.

It can be divided in two parts, 50550 and 5061, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 505505061 in words is "five hundred five million, five hundred five thousand, sixty-one".