52505300052 has 72 divisors (see below), whose sum is σ = 137746408800. Its totient is φ = 16843111488.

The previous prime is 52505300051. The next prime is 52505300053. The reversal of 52505300052 is 25000350525.

It is an interprime number because it is at equal distance from previous prime (52505300051) and next prime (52505300053).

It is a junction number, because it is equal to n+sod(n) for n = 52505299989 and 52505300025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505300051) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 238599 + ... + 402417.

Almost surely, 2^52505300052 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 52505300052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68873204400).

52505300052 is an abundant number, since it is smaller than the sum of its proper divisors (85241108748).

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

52505300052 is a wasteful number, since it uses less digits than its factorization.

52505300052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164165 (or 164160 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

Adding to 52505300052 its reverse (25000350525), we get a palindrome (77505650577).

The spelling of 52505300052 in words is "fifty-two billion, five hundred five million, three hundred thousand, fifty-two".