505802660 has 48 divisors (see below), whose sum is σ = 1209140352. Its totient is φ = 175929600.

The previous prime is 505802653. The next prime is 505802663. The reversal of 505802660 is 66208505.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (505802663) 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 15 ways as a sum of consecutive naturals, for example, 44921 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (25190424).

Almost surely, 2^505802660 is an apocalyptic number.

It is an amenable number.

505802660 is an abundant number, since it is smaller than the sum of its proper divisors (703337692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505802660 is a wasteful number, since it uses less digits than its factorization.

505802660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100004 (or 100002 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 505802660 is about 22490.0569141121. The cubic root of 505802660 is about 796.7591072471.

The spelling of 505802660 in words is "five hundred five million, eight hundred two thousand, six hundred sixty".