9972250361 has 2 divisors, whose sum is σ = 9972250362. Its totient is φ = 9972250360.

The previous prime is 9972250313. The next prime is 9972250391. The reversal of 9972250361 is 1630522799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5799736336 + 4172514025 = 76156^2 + 64595^2 .

It is a cyclic number.

It is not a de Polignac number, because 9972250361 - 2¹⁰ = 9972249337 is a prime.

It is not a weakly prime, because it can be changed into another prime (9972250391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986125180 + 4986125181.

It is an arithmetic number, because the mean of its divisors is an integer number (4986125181).

Almost surely, 2^9972250361 is an apocalyptic number.

It is an amenable number.

9972250361 is a deficient number, since it is larger than the sum of its proper divisors (1).

9972250361 is an equidigital number, since it uses as much as digits as its factorization.

9972250361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 9972250361 is about 99861.1554159073. The cubic root of 9972250361 is about 2152.4400176814.

The spelling of 9972250361 in words is "nine billion, nine hundred seventy-two million, two hundred fifty thousand, three hundred sixty-one".