985059521 has 4 divisors (see below), whose sum is σ = 996927792. Its totient is φ = 973191252.

The previous prime is 985059499. The next prime is 985059539. The reversal of 985059521 is 125950589.

985059521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125950589 = 163 ⋅772703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985059521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985059121) 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, 5934011 + ... + 5934176.

It is an arithmetic number, because the mean of its divisors is an integer number (249231948).

Almost surely, 2^985059521 is an apocalyptic number.

It is an amenable number.

985059521 is a deficient number, since it is larger than the sum of its proper divisors (11868271).

985059521 is a wasteful number, since it uses less digits than its factorization.

985059521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868270.

The product of its (nonzero) digits is 162000, while the sum is 44.

The square root of 985059521 is about 31385.6578870031. The cubic root of 985059521 is about 994.9948304067.

The spelling of 985059521 in words is "nine hundred eighty-five million, fifty-nine thousand, five hundred twenty-one".