505430530 has 16 divisors (see below), whose sum is σ = 992481984. Its totient is φ = 183792880.

The previous prime is 505430501. The next prime is 505430537. The reversal of 505430530 is 35034505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505430495 and 505430504.

It is not an unprimeable number, because it can be changed into a prime (505430537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297302 + ... + 2297521.

It is an arithmetic number, because the mean of its divisors is an integer number (62030124).

Almost surely, 2^505430530 is an apocalyptic number.

505430530 is a deficient number, since it is larger than the sum of its proper divisors (487051454).

505430530 is a wasteful number, since it uses less digits than its factorization.

505430530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594841.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 505430530 is about 22481.7821802454. The cubic root of 505430530 is about 796.5636616493.

The spelling of 505430530 in words is "five hundred five million, four hundred thirty thousand, five hundred thirty".