19192854331225 has 9 divisors (see below), whose sum is σ = 23799166532733. Its totient is φ = 15354265941120.

The previous prime is 19192854331213. The next prime is 19192854331253. The reversal of 19192854331225 is 52213345829191.

The square root of 19192854331225 is 4380965.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3742263167049 + 15450591164176 = 1934493^2 + 3930724^2 .

It is not a de Polignac number, because 19192854331225 - 2⁵ = 19192854331193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21466729 + ... + 22342921.

Almost surely, 2^{19192854331225} is an apocalyptic number.

19192854331225 is the 4380965-th square number.

19192854331225 is the 2190483-rd centered octagonal number.

It is an amenable number.

19192854331225 is a deficient number, since it is larger than the sum of its proper divisors (4606312201508).

19192854331225 is an frugal number, since it uses more digits than its factorization.

19192854331225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752396 (or 876198 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The spelling of 19192854331225 in words is "nineteen trillion, one hundred ninety-two billion, eight hundred fifty-four million, three hundred thirty-one thousand, two hundred twenty-five".