19055949 has 8 divisors (see below), whose sum is σ = 27717792. Its totient is φ = 11549040.

The previous prime is 19055909. The next prime is 19055977. The reversal of 19055949 is 94955091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19055949 - 2⁹ = 19055437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19055949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19055909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288694 + ... + 288759.

It is an arithmetic number, because the mean of its divisors is an integer number (3464724).

Almost surely, 2^19055949 is an apocalyptic number.

It is an amenable number.

19055949 is a deficient number, since it is larger than the sum of its proper divisors (8661843).

19055949 is a wasteful number, since it uses less digits than its factorization.

19055949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577467.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 19055949 is about 4365.3120163397. The cubic root of 19055949 is about 267.1018282081.

The spelling of 19055949 in words is "nineteen million, fifty-five thousand, nine hundred forty-nine".