53152221052 has 48 divisors (see below), whose sum is σ = 108830740480. Its totient is φ = 22238701632.

The previous prime is 53152221049. The next prime is 53152221079. The reversal of 53152221052 is 25012225135.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 53152221052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685898 + ... + 2705614.

Almost surely, 2^53152221052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53152221052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54415370240).

53152221052 is an abundant number, since it is smaller than the sum of its proper divisors (55678519428).

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

53152221052 is a wasteful number, since it uses less digits than its factorization.

53152221052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22010 (or 22008 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 53152221052 its reverse (25012225135), we get a palindrome (78164446187).

The spelling of 53152221052 in words is "fifty-three billion, one hundred fifty-two million, two hundred twenty-one thousand, fifty-two".