19550325808 has 40 divisors (see below), whose sum is σ = 41895023408. Its totient is φ = 8779352832.

The previous prime is 19550325803. The next prime is 19550325827. The reversal of 19550325808 is 80852305591.

It is not an unprimeable number, because it can be changed into a prime (19550325803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262466 + ... + 1277857.

Almost surely, 2^19550325808 is an apocalyptic number.

It is an amenable number.

19550325808 is an abundant number, since it is smaller than the sum of its proper divisors (22344697600).

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

19550325808 is a wasteful number, since it uses less digits than its factorization.

19550325808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540381 (or 2540375 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 19550325808 in words is "nineteen billion, five hundred fifty million, three hundred twenty-five thousand, eight hundred eight".