207995284225 has 27 divisors (see below), whose sum is σ = 263025106939. Its totient is φ = 163161814400.

The previous prime is 207995284127. The next prime is 207995284271. The reversal of 207995284225 is 522482599702.

The square root of 207995284225 is 456065.

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

It can be written as a sum of positive squares in 13 ways, for example, as 39324079809 + 168671204416 = 198303^2 + 410696^2 .

It is not a de Polignac number, because 207995284225 - 2⁷ = 207995284097 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 (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 120856365 + ... + 120858085.

Almost surely, 2^207995284225 is an apocalyptic number.

207995284225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

207995284225 is the 456065-th square number.

207995284225 is the 228033-rd centered octagonal number.

It is an amenable number.

207995284225 is a deficient number, since it is larger than the sum of its proper divisors (55029822714).

207995284225 is an frugal number, since it uses more digits than its factorization.

207995284225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 207995284225 in words is "two hundred seven billion, nine hundred ninety-five million, two hundred eighty-four thousand, two hundred twenty-five".