19550000355 has 16 divisors (see below), whose sum is σ = 31391324064. Its totient is φ = 10389559040.

The previous prime is 19550000339. The next prime is 19550000369. The reversal of 19550000355 is 55300005591.

It is not a de Polignac number, because 19550000355 - 2⁴ = 19550000339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2314884 + ... + 2323313.

It is an arithmetic number, because the mean of its divisors is an integer number (1961957754).

Almost surely, 2^19550000355 is an apocalyptic number.

19550000355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19550000355 is a deficient number, since it is larger than the sum of its proper divisors (11841323709).

19550000355 is a wasteful number, since it uses less digits than its factorization.

19550000355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638486.

The product of its (nonzero) digits is 16875, while the sum is 33.

The spelling of 19550000355 in words is "nineteen billion, five hundred fifty million, three hundred fifty-five", and thus it is an aban number.