505560925 has 6 divisors (see below), whose sum is σ = 626895578. Its totient is φ = 404448720.

The previous prime is 505560919. The next prime is 505560929. The reversal of 505560925 is 529065505.

It can be written as a sum of positive squares in 3 ways, for example, as 480249 + 505080676 = 693^2 + 22474^2 .

It is not a de Polignac number, because 505560925 - 2³ = 505560917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505560929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10111194 + ... + 10111243.

Almost surely, 2^505560925 is an apocalyptic number.

It is an amenable number.

505560925 is a deficient number, since it is larger than the sum of its proper divisors (121334653).

505560925 is a wasteful number, since it uses less digits than its factorization.

505560925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20222447 (or 20222442 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 505560925 is about 22484.6820079805. The cubic root of 505560925 is about 796.6321570419.

The spelling of 505560925 in words is "five hundred five million, five hundred sixty thousand, nine hundred twenty-five".