67202785225 has 27 divisors (see below), whose sum is σ = 84160904373. Its totient is φ = 53232351840.

The previous prime is 67202785219. The next prime is 67202785259. The reversal of 67202785225 is 52258720276.

The square root of 67202785225 is 259235.

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 647040969 + 66555744256 = 25437^2 + 257984^2 .

It is not a de Polignac number, because 67202785225 - 2³ = 67202785217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 180168139 + ... + 180168511.

Almost surely, 2^67202785225 is an apocalyptic number.

67202785225 is the 259235-th square number.

67202785225 is the 129618-th centered octagonal number.

It is an amenable number.

67202785225 is a deficient number, since it is larger than the sum of its proper divisors (16958119148).

67202785225 is an frugal number, since it uses more digits than its factorization.

67202785225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 67202785225 in words is "sixty-seven billion, two hundred two million, seven hundred eighty-five thousand, two hundred twenty-five".