512947530 has 96 divisors (see below), whose sum is σ = 1357836480. Its totient is φ = 134334720.

The previous prime is 512947529. The next prime is 512947537. The reversal of 512947530 is 35749215.

512947530 is a `hidden beast` number, since 512 + 94 + 7 + 53 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (512947537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1638654 + ... + 1638966.

It is an arithmetic number, because the mean of its divisors is an integer number (14144130).

Almost surely, 2^512947530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512947530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678918240).

512947530 is an abundant number, since it is smaller than the sum of its proper divisors (844888950).

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

512947530 is a wasteful number, since it uses less digits than its factorization.

512947530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 512947530 is about 22648.3449726465. The cubic root of 512947530 is about 800.4932010867.

The spelling of 512947530 in words is "five hundred twelve million, nine hundred forty-seven thousand, five hundred thirty".