9725245553 has 2 divisors, whose sum is σ = 9725245554. Its totient is φ = 9725245552.

The previous prime is 9725245531. The next prime is 9725245571. The reversal of 9725245553 is 3555425279.

It is a happy number.

9725245553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9428992609 + 296252944 = 97103^2 + 17212^2 .

It is a cyclic number.

It is not a de Polignac number, because 9725245553 - 2¹⁴ = 9725229169 is a prime.

It is a super-2 number, since 2×9725245553² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9725245498 and 9725245507.

It is not a weakly prime, because it can be changed into another prime (9725245253) 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 as a sum of consecutive naturals, namely, 4862622776 + 4862622777.

It is an arithmetic number, because the mean of its divisors is an integer number (4862622777).

Almost surely, 2^9725245553 is an apocalyptic number.

It is an amenable number.

9725245553 is a deficient number, since it is larger than the sum of its proper divisors (1).

9725245553 is an equidigital number, since it uses as much as digits as its factorization.

9725245553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890000, while the sum is 47.

The square root of 9725245553 is about 98616.6596118526. The cubic root of 9725245553 is about 2134.5198204926.

The spelling of 9725245553 in words is "nine billion, seven hundred twenty-five million, two hundred forty-five thousand, five hundred fifty-three".