15728248550 has 48 divisors (see below), whose sum is σ = 33552114432. Its totient is φ = 5373453600.

The previous prime is 15728248537. The next prime is 15728248597. The reversal of 15728248550 is 5584282751.

It is a junction number, because it is equal to n+sod(n) for n = 15728248495 and 15728248504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19655 + ... + 178445.

It is an arithmetic number, because the mean of its divisors is an integer number (699002384).

Almost surely, 2^15728248550 is an apocalyptic number.

15728248550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15728248550 is an abundant number, since it is smaller than the sum of its proper divisors (17823865882).

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

15728248550 is a wasteful number, since it uses less digits than its factorization.

15728248550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159093 (or 159088 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 47.

The spelling of 15728248550 in words is "fifteen billion, seven hundred twenty-eight million, two hundred forty-eight thousand, five hundred fifty".