9961325 has 36 divisors (see below), whose sum is σ = 14100660. Its totient is φ = 6969600.

The previous prime is 9961313. The next prime is 9961333. The reversal of 9961325 is 5231699.

It can be written as a sum of positive squares in 6 ways, for example, as 64009 + 9897316 = 253^2 + 3146^2 .

It is not a de Polignac number, because 9961325 - 2²⁰ = 8912749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 111881 + ... + 111969.

It is an arithmetic number, because the mean of its divisors is an integer number (391685).

Almost surely, 2^9961325 is an apocalyptic number.

It is an amenable number.

9961325 is a deficient number, since it is larger than the sum of its proper divisors (4139335).

9961325 is a wasteful number, since it uses less digits than its factorization.

9961325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 142 counting only the distinct ones).

The product of its digits is 14580, while the sum is 35.

The square root of 9961325 is about 3156.1566817888. The cubic root of 9961325 is about 215.1653676367.

The spelling of 9961325 in words is "nine million, nine hundred sixty-one thousand, three hundred twenty-five".