505502750528 has 56 divisors (see below), whose sum is σ = 1013459247144. Its totient is φ = 250145024000.

The previous prime is 505502750527. The next prime is 505502750569. The reversal of 505502750528 is 825057205505.

It can be written as a sum of positive squares in 4 ways, for example, as 147984857344 + 357517893184 = 384688^2 + 597928^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505502750527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16927226 + ... + 16957062.

Almost surely, 2^505502750528 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 505502750528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506729623572).

505502750528 is an abundant number, since it is smaller than the sum of its proper divisors (507956496616).

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

505502750528 is a wasteful number, since it uses less digits than its factorization.

505502750528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32571 (or 32561 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 44.

The spelling of 505502750528 in words is "five hundred five billion, five hundred two million, seven hundred fifty thousand, five hundred twenty-eight".