19855048 has 32 divisors (see below), whose sum is σ = 40024800. Its totient is φ = 9199872.

The previous prime is 19855021. The next prime is 19855061. The reversal of 19855048 is 84055891.

It is a self number, because there is not a number n which added to its sum of digits gives 19855048.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8023 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (1250775).

Almost surely, 2^19855048 is an apocalyptic number.

It is an amenable number.

19855048 is an abundant number, since it is smaller than the sum of its proper divisors (20169752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19855048 is a wasteful number, since it uses less digits than its factorization.

19855048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 19855048 is about 4455.9003579524. The cubic root of 19855048 is about 270.7844038998.

The spelling of 19855048 in words is "nineteen million, eight hundred fifty-five thousand, forty-eight".