523985416 has 16 divisors (see below), whose sum is σ = 1009026540. Its totient is φ = 254911680.

The previous prime is 523985383. The next prime is 523985417. The reversal of 523985416 is 614589325.

It can be written as a sum of positive squares in 2 ways, for example, as 517380516 + 6604900 = 22746^2 + 2570^2 .

It is not an unprimeable number, because it can be changed into a prime (523985417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884815 + ... + 885406.

Almost surely, 2^523985416 is an apocalyptic number.

It is an amenable number.

523985416 is a deficient number, since it is larger than the sum of its proper divisors (485041124).

523985416 is a wasteful number, since it uses less digits than its factorization.

523985416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770264 (or 1770260 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 523985416 is about 22890.7277298036. The cubic root of 523985416 is about 806.1943184028.

The spelling of 523985416 in words is "five hundred twenty-three million, nine hundred eighty-five thousand, four hundred sixteen".