9910561225 has 12 divisors (see below), whose sum is σ = 12305658816. Its totient is φ = 7917763280.

The previous prime is 9910561217. The next prime is 9910561261. The reversal of 9910561225 is 5221650199.

It is not a de Polignac number, because 9910561225 - 2³ = 9910561217 is a prime.

It is a super-3 number, since 3×9910561225³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248197 + ... + 285346.

It is an arithmetic number, because the mean of its divisors is an integer number (1025471568).

Almost surely, 2^9910561225 is an apocalyptic number.

It is an amenable number.

9910561225 is a deficient number, since it is larger than the sum of its proper divisors (2395097591).

9910561225 is a wasteful number, since it uses less digits than its factorization.

9910561225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534296 (or 534291 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 9910561225 is about 99551.8017164933. The cubic root of 9910561225 is about 2147.9924454888.

The spelling of 9910561225 in words is "nine billion, nine hundred ten million, five hundred sixty-one thousand, two hundred twenty-five".