19115056 has 20 divisors (see below), whose sum is σ = 37665000. Its totient is φ = 9395072.

The previous prime is 19115023. The next prime is 19115059. The reversal of 19115056 is 65051191.

It is not an unprimeable number, because it can be changed into a prime (19115059) 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, 9181 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (1883250).

Almost surely, 2^19115056 is an apocalyptic number.

19115056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19115056 is a deficient number, since it is larger than the sum of its proper divisors (18549944).

19115056 is a wasteful number, since it uses less digits than its factorization.

19115056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20316 (or 20310 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 19115056 is about 4372.0768520235. The cubic root of 19115056 is about 267.3777051836.

The spelling of 19115056 in words is "nineteen million, one hundred fifteen thousand, fifty-six".