53121433532 has 12 divisors (see below), whose sum is σ = 92964482016. Its totient is φ = 26560152960.

The previous prime is 53121433529. The next prime is 53121433571. The reversal of 53121433532 is 23533412135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128108 + ... + 350220.

It is an arithmetic number, because the mean of its divisors is an integer number (7747040168).

Almost surely, 2^53121433532 is an apocalyptic number.

It is an amenable number.

53121433532 is a deficient number, since it is larger than the sum of its proper divisors (39843048484).

53121433532 is a wasteful number, since it uses less digits than its factorization.

53121433532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281908 (or 281906 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

Adding to 53121433532 its reverse (23533412135), we get a palindrome (76654845667).

The spelling of 53121433532 in words is "fifty-three billion, one hundred twenty-one million, four hundred thirty-three thousand, five hundred thirty-two".