2119542898225 has 9 divisors (see below), whose sum is σ = 2628242220193. Its totient is φ = 1695628495120.

The previous prime is 2119542898199. The next prime is 2119542898237. The reversal of 2119542898225 is 5228982459112.

The square root of 2119542898225 is 1455865.

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 746483904049 + 1373058994176 = 863993^2 + 1171776^2 .

It is not a de Polignac number, because 2119542898225 - 2²¹ = 2119540801073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2119542898225.

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, 7133739 + ... + 7424911.

Almost surely, 2^{2119542898225} is an apocalyptic number.

2119542898225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2119542898225 is the 1455865-th square number.

2119542898225 is the 727933-rd centered octagonal number.

It is an amenable number.

2119542898225 is a deficient number, since it is larger than the sum of its proper divisors (508699321968).

2119542898225 is an frugal number, since it uses more digits than its factorization.

2119542898225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582356 (or 291178 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 58.

The spelling of 2119542898225 in words is "two trillion, one hundred nineteen billion, five hundred forty-two million, eight hundred ninety-eight thousand, two hundred twenty-five".