7085897944225 has 27 divisors (see below), whose sum is σ = 8845443475641. Its totient is φ = 5630950821600.

The previous prime is 7085897944183. The next prime is 7085897944243. The reversal of 7085897944225 is 5224497985807.

It is a happy number.

The square root of 7085897944225 is 2661935.

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 857000102049 + 6228897842176 = 925743^2 + 2495776^2 .

It is not a de Polignac number, because 7085897944225 - 2¹¹ = 7085897942177 is a prime.

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, 2089617280 + ... + 2089620670.

Almost surely, 2^{7085897944225} is an apocalyptic number.

7085897944225 is the 2661935-th square number.

7085897944225 is the 1330968-th centered octagonal number.

It is an amenable number.

7085897944225 is a deficient number, since it is larger than the sum of its proper divisors (1759545531416).

7085897944225 is an frugal number, since it uses more digits than its factorization.

7085897944225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 406425600, while the sum is 70.

The spelling of 7085897944225 in words is "seven trillion, eighty-five billion, eight hundred ninety-seven million, nine hundred forty-four thousand, two hundred twenty-five".