19055419 has 4 divisors (see below), whose sum is σ = 20176344. Its totient is φ = 17934496.

The previous prime is 19055411. The next prime is 19055429. The reversal of 19055419 is 91455091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19055419 - 2³ = 19055411 is a prime.

It is a super-2 number, since 2×19055419² = 726217986531122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19055411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560437 + ... + 560470.

It is an arithmetic number, because the mean of its divisors is an integer number (5044086).

Almost surely, 2^19055419 is an apocalyptic number.

19055419 is a deficient number, since it is larger than the sum of its proper divisors (1120925).

19055419 is a wasteful number, since it uses less digits than its factorization.

19055419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120924.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 19055419 is about 4365.2513100622. The cubic root of 19055419 is about 267.0993518987.

The spelling of 19055419 in words is "nineteen million, fifty-five thousand, four hundred nineteen".