252505052528 has 80 divisors (see below), whose sum is σ = 524065386240. Its totient is φ = 117441297408.

The previous prime is 252505052507. The next prime is 252505052537. The reversal of 252505052528 is 825250505252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12766775 + ... + 12786537.

It is an arithmetic number, because the mean of its divisors is an integer number (6550817328).

Almost surely, 2^252505052528 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 252505052528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262032693120).

252505052528 is an abundant number, since it is smaller than the sum of its proper divisors (271560333712).

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

252505052528 is a wasteful number, since it uses less digits than its factorization.

252505052528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334 (or 20328 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 252505052528 in words is "two hundred fifty-two billion, five hundred five million, fifty-two thousand, five hundred twenty-eight".