19471055 has 4 divisors (see below), whose sum is σ = 23365272. Its totient is φ = 15576840.

The previous prime is 19471043. The next prime is 19471057. The reversal of 19471055 is 55017491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55017491 = 17 ⋅3236323.

It is not a de Polignac number, because 19471055 - 2²⁰ = 18422479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19471057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947101 + ... + 1947110.

It is an arithmetic number, because the mean of its divisors is an integer number (5841318).

Almost surely, 2^19471055 is an apocalyptic number.

19471055 is a deficient number, since it is larger than the sum of its proper divisors (3894217).

19471055 is an equidigital number, since it uses as much as digits as its factorization.

19471055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894216.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 19471055 is about 4412.6018401845. The cubic root of 19471055 is about 269.0273876566.

The spelling of 19471055 in words is "nineteen million, four hundred seventy-one thousand, fifty-five".