505351530 has 24 divisors (see below), whose sum is σ = 1313914212. Its totient is φ = 134760384.

The previous prime is 505351507. The next prime is 505351543. The reversal of 505351530 is 35153505.

505351530 is a `hidden beast` number, since 505 + 3 + 5 + 153 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 481056489 + 24295041 = 21933^2 + 4929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 505351494 and 505351503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2807419 + ... + 2807598.

Almost surely, 2^505351530 is an apocalyptic number.

505351530 is an abundant number, since it is smaller than the sum of its proper divisors (808562682).

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

505351530 is a wasteful number, since it uses less digits than its factorization.

505351530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615030 (or 5615027 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 505351530 is about 22480.0251334379. The cubic root of 505351530 is about 796.5221578854.

The spelling of 505351530 in words is "five hundred five million, three hundred fifty-one thousand, five hundred thirty".