647083492225 has 9 divisors (see below), whose sum is σ = 802388517763. Its totient is φ = 517663576120.

The previous prime is 647083492169. The next prime is 647083492249. The reversal of 647083492225 is 522294380746.

The square root of 647083492225 is 804415.

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

It can be written as a sum of positive squares in only one way, i.e., 232950057201 + 414133435024 = 482649^2 + 643532^2 .

It is not a de Polignac number, because 647083492225 - 2¹⁷ = 647083361153 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 8 ways as a sum of consecutive naturals, for example, 3941634 + ... + 4102516.

Almost surely, 2^647083492225 is an apocalyptic number.

647083492225 is the 804415-th square number.

647083492225 is the 402208-th centered octagonal number.

It is an amenable number.

647083492225 is a deficient number, since it is larger than the sum of its proper divisors (155305025538).

647083492225 is an frugal number, since it uses more digits than its factorization.

647083492225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321776 (or 160888 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 647083492225 in words is "six hundred forty-seven billion, eighty-three million, four hundred ninety-two thousand, two hundred twenty-five".