19272143900025 has 27 divisors (see below), whose sum is σ = 34518669019471. Its totient is φ = 10278441626640.

The previous prime is 19272143899937. The next prime is 19272143900063. The reversal of 19272143900025 is 52000934127291.

The square root of 19272143900025 is 4390005.

It is a perfect power (a square), and thus also a powerful number.

19272143900025 is a `hidden beast` number, since 1 + 9 + 27 + 214 + 390 + 0 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6937971804009 + 12334172096016 = 2634003^2 + 3512004^2 .

It is not a de Polignac number, because 19272143900025 - 2⁹ = 19272143899513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65703742 + ... + 65996408.

Almost surely, 2^{19272143900025} is an apocalyptic number.

19272143900025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19272143900025 is the 4390005-th square number.

19272143900025 is the 2195003-rd centered octagonal number.

It is an amenable number.

19272143900025 is a deficient number, since it is larger than the sum of its proper divisors (15246525119446).

19272143900025 is an frugal number, since it uses more digits than its factorization.

19272143900025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585350 (or 292675 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 19272143900025 in words is "nineteen trillion, two hundred seventy-two billion, one hundred forty-three million, nine hundred thousand, twenty-five".