522486721 has 8 divisors (see below), whose sum is σ = 556536960. Its totient is φ = 488804928.

The previous prime is 522486709. The next prime is 522486751. The reversal of 522486721 is 127684225.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522486721 - 2¹¹ = 522484673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522486751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89181 + ... + 94858.

It is an arithmetic number, because the mean of its divisors is an integer number (69567120).

Almost surely, 2^522486721 is an apocalyptic number.

It is an amenable number.

522486721 is a deficient number, since it is larger than the sum of its proper divisors (34050239).

522486721 is a wasteful number, since it uses less digits than its factorization.

522486721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184223.

The product of its digits is 53760, while the sum is 37.

The square root of 522486721 is about 22857.9684355369. The cubic root of 522486721 is about 805.4249629207.

The spelling of 522486721 in words is "five hundred twenty-two million, four hundred eighty-six thousand, seven hundred twenty-one".