247253584516 has 27 divisors (see below), whose sum is σ = 441105877093. Its totient is φ = 121268354480.

The previous prime is 247253584493. The next prime is 247253584519. The reversal of 247253584516 is 615485352742.

The square root of 247253584516 is 497246.

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., 178244396100 + 69009188416 = 422190^2 + 262696^2 .

It is a super-2 number, since 2×247253584516² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247253584519) by changing a digit.

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, 52705731 + ... + 52710421.

Almost surely, 2^247253584516 is an apocalyptic number.

247253584516 is the 497246-th square number.

It is an amenable number.

247253584516 is a deficient number, since it is larger than the sum of its proper divisors (193852292577).

247253584516 is an frugal number, since it uses more digits than its factorization.

247253584516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9492 (or 4746 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 52.

The spelling of 247253584516 in words is "two hundred forty-seven billion, two hundred fifty-three million, five hundred eighty-four thousand, five hundred sixteen".