53509635522 has 54 divisors (see below), whose sum is σ = 134883439353. Its totient is φ = 15286504464.

The previous prime is 53509635499. The next prime is 53509635527. The reversal of 53509635522 is 22553690535.

53509635522 is a `hidden beast` number, since 5 + 3 + 5 + 0 + 9 + 635 + 5 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53060661801 + 448973721 = 230349^2 + 21189^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=163569.

It is not an unprimeable number, because it can be changed into a prime (53509635527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6866004 + ... + 6873792.

Almost surely, 2^53509635522 is an apocalyptic number.

53509635522 is an abundant number, since it is smaller than the sum of its proper divisors (81373803831).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53509635522 is an frugal number, since it uses more digits than its factorization.

53509635522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15600 (or 7801 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 45.

The spelling of 53509635522 in words is "fifty-three billion, five hundred nine million, six hundred thirty-five thousand, five hundred twenty-two".