505447061 has 32 divisors (see below), whose sum is σ = 615859200. Its totient is φ = 405699840.

The previous prime is 505447021. The next prime is 505447093. The reversal of 505447061 is 160744505.

It is a de Polignac number, because none of the positive numbers 2^k-505447061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505447021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1172516 + ... + 1172946.

It is an arithmetic number, because the mean of its divisors is an integer number (19245600).

Almost surely, 2^505447061 is an apocalyptic number.

It is an amenable number.

505447061 is a deficient number, since it is larger than the sum of its proper divisors (110412139).

505447061 is a wasteful number, since it uses less digits than its factorization.

505447061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 505447061 is about 22482.1498304766. The cubic root of 505447061 is about 796.5723458961.

The spelling of 505447061 in words is "five hundred five million, four hundred forty-seven thousand, sixty-one".