9785013253 has 2 divisors, whose sum is σ = 9785013254. Its totient is φ = 9785013252.

The previous prime is 9785013169. The next prime is 9785013317. The reversal of 9785013253 is 3523105879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6865448164 + 2919565089 = 82858^2 + 54033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9785013253 is a prime.

It is a super-2 number, since 2×9785013253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9785013353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4892506626 + 4892506627.

It is an arithmetic number, because the mean of its divisors is an integer number (4892506627).

Almost surely, 2^9785013253 is an apocalyptic number.

It is an amenable number.

9785013253 is a deficient number, since it is larger than the sum of its proper divisors (1).

9785013253 is an equidigital number, since it uses as much as digits as its factorization.

9785013253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 9785013253 is about 98919.2259017427. The cubic root of 9785013253 is about 2138.8835452912.

The spelling of 9785013253 in words is "nine billion, seven hundred eighty-five million, thirteen thousand, two hundred fifty-three".