509528894 has 16 divisors (see below), whose sum is σ = 894783456. Its totient is φ = 213043200.

The previous prime is 509528891. The next prime is 509528923. The reversal of 509528894 is 498825905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509528891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443267 + ... + 444414.

It is an arithmetic number, because the mean of its divisors is an integer number (55923966).

Almost surely, 2^509528894 is an apocalyptic number.

509528894 is a deficient number, since it is larger than the sum of its proper divisors (385254562).

509528894 is a wasteful number, since it uses less digits than its factorization.

509528894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887731.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The square root of 509528894 is about 22572.7467092510. The cubic root of 509528894 is about 798.7108894834.

The spelling of 509528894 in words is "five hundred nine million, five hundred twenty-eight thousand, eight hundred ninety-four".