19550224328 has 16 divisors (see below), whose sum is σ = 36663055260. Its totient is φ = 9773409600.

The previous prime is 19550224313. The next prime is 19550224333. The reversal of 19550224328 is 82342205591.

It can be written as a sum of positive squares in 2 ways, for example, as 18983879524 + 566344804 = 137782^2 + 23798^2 .

It is a super-2 number, since 2×19550224328² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 163343 + ... + 256478.

Almost surely, 2^19550224328 is an apocalyptic number.

It is an amenable number.

19550224328 is a deficient number, since it is larger than the sum of its proper divisors (17112830932).

19550224328 is a wasteful number, since it uses less digits than its factorization.

19550224328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425648 (or 425644 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 19550224328 in words is "nineteen billion, five hundred fifty million, two hundred twenty-four thousand, three hundred twenty-eight".