15228335522500 has 135 divisors (see below), whose sum is σ = 35383162105137. Its totient is φ = 5731771680000.

The previous prime is 15228335522497. The next prime is 15228335522509. The reversal of 15228335522500 is 522553382251.

The square root of 15228335522500 is 3902350.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 7436823518916 + 7791512003584 = 2727054^2 + 2791328^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15228335522509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3316995205 + ... + 3316999795.

Almost surely, 2^{15228335522500} is an apocalyptic number.

15228335522500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15228335522500 is the 3902350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15228335522500

15228335522500 is an abundant number, since it is smaller than the sum of its proper divisors (20154826582637).

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

15228335522500 is an frugal number, since it uses more digits than its factorization.

15228335522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240 (or 4615 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 15228335522500 in words is "fifteen trillion, two hundred twenty-eight billion, three hundred thirty-five million, five hundred twenty-two thousand, five hundred".