522070985 has 4 divisors (see below), whose sum is σ = 626485188. Its totient is φ = 417656784.

The previous prime is 522070981. The next prime is 522071009. The reversal of 522070985 is 589070225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162741049 + 359329936 = 12757^2 + 18956^2 .

It is a cyclic number.

It is not a de Polignac number, because 522070985 - 2² = 522070981 is a prime.

It is a super-2 number, since 2×522070985² = 545116226757740450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522070981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52207094 + ... + 52207103.

It is an arithmetic number, because the mean of its divisors is an integer number (156621297).

Almost surely, 2^522070985 is an apocalyptic number.

It is an amenable number.

522070985 is a deficient number, since it is larger than the sum of its proper divisors (104414203).

522070985 is a wasteful number, since it uses less digits than its factorization.

522070985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104414202.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 522070985 is about 22848.8727293055. The cubic root of 522070985 is about 805.2112841236.

The spelling of 522070985 in words is "five hundred twenty-two million, seventy thousand, nine hundred eighty-five".