9725520872503 has 4 divisors (see below), whose sum is σ = 10060883661240. Its totient is φ = 9390158083768.

The previous prime is 9725520872491. The next prime is 9725520872537. The reversal of 9725520872503 is 3052780255279.

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

It is a cyclic number.

It is not a de Polignac number, because 9725520872503 - 2³³ = 9716930937911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725520872303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167681394325 + ... + 167681394382.

It is an arithmetic number, because the mean of its divisors is an integer number (2515220915310).

Almost surely, 2^{9725520872503} is an apocalyptic number.

9725520872503 is a deficient number, since it is larger than the sum of its proper divisors (335362788737).

9725520872503 is a wasteful number, since it uses less digits than its factorization.

9725520872503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335362788736.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 9725520872503 in words is "nine trillion, seven hundred twenty-five billion, five hundred twenty million, eight hundred seventy-two thousand, five hundred three".