9782225799025 has 27 divisors (see below), whose sum is σ = 12680745792001. Its totient is φ = 7485254073440.

The previous prime is 9782225798981. The next prime is 9782225799077. The reversal of 9782225799025 is 5209975222879.

The square root of 9782225799025 is 3127655.

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 75960320881 + 9706265478144 = 275609^2 + 3115488^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9782225799025 is a prime.

It is a super-2 number, since 2×9782225799025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 359666727 + ... + 359693923.

Almost surely, 2^{9782225799025} is an apocalyptic number.

9782225799025 is the 3127655-th square number.

9782225799025 is the 1563828-th centered octagonal number.

It is an amenable number.

9782225799025 is a deficient number, since it is larger than the sum of its proper divisors (2898519992976).

9782225799025 is an frugal number, since it uses more digits than its factorization.

9782225799025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54450 (or 27225 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 9782225799025 in words is "nine trillion, seven hundred eighty-two billion, two hundred twenty-five million, seven hundred ninety-nine thousand, twenty-five".