39775537036225 has 9 divisors (see below), whose sum is σ = 49321705027017. Its totient is φ = 31820404401840.

The previous prime is 39775537036211. The next prime is 39775537036283. The reversal of 39775537036225 is 52263073557793.

The square root of 39775537036225 is 6306785.

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

39775537036225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50047506369 + 39725489529856 = 223713^2 + 6302816^2 .

It is not a de Polignac number, because 39775537036225 - 2¹³ = 39775537028033 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 (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30903247 + ... + 32164603.

Almost surely, 2^{39775537036225} is an apocalyptic number.

39775537036225 is the 6306785-th square number.

39775537036225 is the 3153393-rd centered octagonal number.

It is an amenable number.

39775537036225 is a deficient number, since it is larger than the sum of its proper divisors (9546167990792).

39775537036225 is an frugal number, since it uses more digits than its factorization.

39775537036225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522724 (or 1261362 counting only the distinct ones).

The product of its (nonzero) digits is 250047000, while the sum is 64.

The spelling of 39775537036225 in words is "thirty-nine trillion, seven hundred seventy-five billion, five hundred thirty-seven million, thirty-six thousand, two hundred twenty-five".