19066225 has 12 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 15184400.

The previous prime is 19066217. The next prime is 19066247. The reversal of 19066225 is 52266091.

It is not a de Polignac number, because 19066225 - 2³ = 19066217 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4380 + ... + 7570.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^19066225 is an apocalyptic number.

It is an amenable number.

19066225 is a deficient number, since it is larger than the sum of its proper divisors (4682255).

19066225 is a wasteful number, since it uses less digits than its factorization.

19066225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 19066225 is about 4366.4888640646. The cubic root of 19066225 is about 267.1498315056.

It can be divided in two parts, 19066 and 225, that added together give a palindrome (19291).

The spelling of 19066225 in words is "nineteen million, sixty-six thousand, two hundred twenty-five".