247065320525 has 12 divisors (see below), whose sum is σ = 306707979552. Its totient is φ = 197428397040.

The previous prime is 247065320501. The next prime is 247065320527. The reversal of 247065320525 is 525023560742.

It is not a de Polignac number, because 247065320525 - 2¹⁴ = 247065304141 is a prime.

It is a super-2 number, since 2×247065320525² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247065320527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5573969 + ... + 5618118.

It is an arithmetic number, because the mean of its divisors is an integer number (25558998296).

Almost surely, 2^247065320525 is an apocalyptic number.

247065320525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247065320525 is a deficient number, since it is larger than the sum of its proper divisors (59642659027).

247065320525 is a wasteful number, since it uses less digits than its factorization.

247065320525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11192980 (or 11192975 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 247065320525 in words is "two hundred forty-seven billion, sixty-five million, three hundred twenty thousand, five hundred twenty-five".