19216055 has 16 divisors (see below), whose sum is σ = 23802240. Its totient is φ = 14884128.

The previous prime is 19216013. The next prime is 19216081. The reversal of 19216055 is 55061291.

It is a cyclic number.

It is not a de Polignac number, because 19216055 - 2¹⁸ = 18953911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29564 + ... + 30206.

It is an arithmetic number, because the mean of its divisors is an integer number (1487640).

Almost surely, 2^19216055 is an apocalyptic number.

19216055 is a deficient number, since it is larger than the sum of its proper divisors (4586185).

19216055 is a wasteful number, since it uses less digits than its factorization.

19216055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 19216055 is about 4383.6120950650. The cubic root of 19216055 is about 267.8477963638.

The spelling of 19216055 in words is "nineteen million, two hundred sixteen thousand, fifty-five".