9725503 has 4 divisors (see below), whose sum is σ = 9753408. Its totient is φ = 9697600.

The previous prime is 9725491. The next prime is 9725531. The reversal of 9725503 is 3055279.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9725503 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423 + ... + 14128.

It is an arithmetic number, because the mean of its divisors is an integer number (2438352).

Almost surely, 2^9725503 is an apocalyptic number.

9725503 is a deficient number, since it is larger than the sum of its proper divisors (27905).

9725503 is a wasteful number, since it uses less digits than its factorization.

9725503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27904.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 9725503 is about 3118.5738727822. The cubic root of 9725503 is about 213.4538655351.

It can be divided in two parts, 97 and 25503, that added together give a square (25600 = 160²).

The spelling of 9725503 in words is "nine million, seven hundred twenty-five thousand, five hundred three".