505576530 has 48 divisors (see below), whose sum is σ = 1327285440. Its totient is φ = 133509024.

The previous prime is 505576523. The next prime is 505576531. The reversal of 505576530 is 35675505.

505576530 is a `hidden beast` number, since 5 + 0 + 55 + 76 + 530 = 666.

It is not an unprimeable number, because it can be changed into a prime (505576531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18000 + ... + 36539.

It is an arithmetic number, because the mean of its divisors is an integer number (27651780).

Almost surely, 2^505576530 is an apocalyptic number.

505576530 is an abundant number, since it is smaller than the sum of its proper divisors (821708910).

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

505576530 is a wasteful number, since it uses less digits than its factorization.

505576530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54655 (or 54652 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 505576530 is about 22485.0290193275. The cubic root of 505576530 is about 796.6403534275.

The spelling of 505576530 in words is "five hundred five million, five hundred seventy-six thousand, five hundred thirty".