9725505252 has 12 divisors (see below), whose sum is σ = 22692845616. Its totient is φ = 3241835080.

The previous prime is 9725505233. The next prime is 9725505323. The reversal of 9725505252 is 2525055279.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405229374 + ... + 405229397.

It is an arithmetic number, because the mean of its divisors is an integer number (1891070468).

Almost surely, 2^9725505252 is an apocalyptic number.

It is an amenable number.

9725505252 is an abundant number, since it is smaller than the sum of its proper divisors (12967340364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9725505252 is a wasteful number, since it uses less digits than its factorization.

9725505252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810458778 (or 810458776 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 9725505252 is about 98617.9763126378. The cubic root of 9725505252 is about 2134.5388201064.

The spelling of 9725505252 in words is "nine billion, seven hundred twenty-five million, five hundred five thousand, two hundred fifty-two".