19055993 has 16 divisors (see below), whose sum is σ = 22200000. Its totient is φ = 16174080.

The previous prime is 19055989. The next prime is 19056013. The reversal of 19055993 is 39955091.

It is a cyclic number.

It is not a de Polignac number, because 19055993 - 2² = 19055989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19055993.

It is not an unprimeable number, because it can be changed into a prime (19055893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14633 + ... + 15881.

It is an arithmetic number, because the mean of its divisors is an integer number (1387500).

Almost surely, 2^19055993 is an apocalyptic number.

It is an amenable number.

19055993 is a deficient number, since it is larger than the sum of its proper divisors (3144007).

19055993 is a wasteful number, since it uses less digits than its factorization.

19055993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 19055993 is about 4365.3170560682. The cubic root of 19055993 is about 267.1020337865.

The spelling of 19055993 in words is "nineteen million, fifty-five thousand, nine hundred ninety-three".