9725505503 has 32 divisors (see below), whose sum is σ = 12046454784. Its totient is φ = 7661371392.

The previous prime is 9725505499. The next prime is 9725505551. The reversal of 9725505503 is 3055055279.

It is a cyclic number.

It is not a de Polignac number, because 9725505503 - 2² = 9725505499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725505563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2811551 + ... + 2815007.

It is an arithmetic number, because the mean of its divisors is an integer number (376451712).

Almost surely, 2^9725505503 is an apocalyptic number.

9725505503 is a deficient number, since it is larger than the sum of its proper divisors (2320949281).

9725505503 is a wasteful number, since it uses less digits than its factorization.

9725505503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 236250, while the sum is 41.

The square root of 9725505503 is about 98617.9775852253. The cubic root of 9725505503 is about 2134.5388384694.

The spelling of 9725505503 in words is "nine billion, seven hundred twenty-five million, five hundred five thousand, five hundred three".