53315021532 has 12 divisors (see below), whose sum is σ = 124401716936. Its totient is φ = 17771673840.

The previous prime is 53315021527. The next prime is 53315021537. The reversal of 53315021532 is 23512051335.

It is an interprime number because it is at equal distance from previous prime (53315021527) and next prime (53315021537).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53315021532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53315021537) 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 3 ways as a sum of consecutive naturals, for example, 2221459219 + ... + 2221459242.

Almost surely, 2^53315021532 is an apocalyptic number.

It is an amenable number.

53315021532 is an abundant number, since it is smaller than the sum of its proper divisors (71086695404).

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

53315021532 is a wasteful number, since it uses less digits than its factorization.

53315021532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442918468 (or 4442918466 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 53315021532 its reverse (23512051335), we get a palindrome (76827072867).

The spelling of 53315021532 in words is "fifty-three billion, three hundred fifteen million, twenty-one thousand, five hundred thirty-two".