602773668225 has 135 divisors (see below), whose sum is σ = 1137172323859. Its totient is φ = 316951412400.

The previous prime is 602773668199. The next prime is 602773668227. The reversal of 602773668225 is 522866377206.

The square root of 602773668225 is 776385.

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

602773668225 is a `hidden beast` number, since 6 + 0 + 277 + 366 + 8 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 216998520561 + 385775147664 = 465831^2 + 621108^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 602773668225 - 2¹⁷ = 602773537153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (602773668227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 8489769940 + ... + 8489770010.

Almost surely, 2^602773668225 is an apocalyptic number.

602773668225 is the 776385-th square number.

602773668225 is the 388193-rd centered octagonal number.

It is an amenable number.

602773668225 is a deficient number, since it is larger than the sum of its proper divisors (534398655634).

602773668225 is an frugal number, since it uses more digits than its factorization.

602773668225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

It can be divided in two parts, 6027736 and 68225, that added together give a square (6095961 = 2469²).

The spelling of 602773668225 in words is "six hundred two billion, seven hundred seventy-three million, six hundred sixty-eight thousand, two hundred twenty-five".