360505521 has 12 divisors (see below), whose sum is σ = 520969540. Its totient is φ = 240226560.

The previous prime is 360505513. The next prime is 360505543. The reversal of 360505521 is 125505063.

360505521 is a `hidden beast` number, since 3 + 60 + 50 + 552 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 337089600 = 4839^2 + 18360^2 .

It is not a de Polignac number, because 360505521 - 2³ = 360505513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (360505571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14745 + ... + 30633.

Almost surely, 2^360505521 is an apocalyptic number.

It is an amenable number.

360505521 is a deficient number, since it is larger than the sum of its proper divisors (160464019).

360505521 is a wasteful number, since it uses less digits than its factorization.

360505521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416 (or 18413 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 360505521 is about 18986.9829356852. The cubic root of 360505521 is about 711.7114837272.

The spelling of 360505521 in words is "three hundred sixty million, five hundred five thousand, five hundred twenty-one".