9725220313 has 8 divisors (see below), whose sum is σ = 9805108896. Its totient is φ = 9645417600.

The previous prime is 9725220293. The next prime is 9725220317. The reversal of 9725220313 is 3130225279.

9725220313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9725220313 - 2¹³ = 9725212121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9725220317) 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 7 ways as a sum of consecutive naturals, for example, 216745 + ... + 257737.

It is an arithmetic number, because the mean of its divisors is an integer number (1225638612).

Almost surely, 2^9725220313 is an apocalyptic number.

It is an amenable number.

9725220313 is a deficient number, since it is larger than the sum of its proper divisors (79888583).

9725220313 is a wasteful number, since it uses less digits than its factorization.

9725220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42935.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 9725220313 is about 98616.5316415052. The cubic root of 9725220313 is about 2134.5179739128.

The spelling of 9725220313 in words is "nine billion, seven hundred twenty-five million, two hundred twenty thousand, three hundred thirteen".