9956456525 has 6 divisors (see below), whose sum is σ = 12346006122. Its totient is φ = 7965165200.

The previous prime is 9956456473. The next prime is 9956456533. The reversal of 9956456525 is 5256546599.

9956456525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1691101129 + 8265355396 = 41123^2 + 90914^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9956456525 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199129106 + ... + 199129155.

It is an arithmetic number, because the mean of its divisors is an integer number (2057667687).

Almost surely, 2^9956456525 is an apocalyptic number.

It is an amenable number.

9956456525 is a deficient number, since it is larger than the sum of its proper divisors (2389549597).

9956456525 is a wasteful number, since it uses less digits than its factorization.

9956456525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398258271 (or 398258266 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 56.

The square root of 9956456525 is about 99782.0451033151. The cubic root of 9956456525 is about 2151.3030878271.

The spelling of 9956456525 in words is "nine billion, nine hundred fifty-six million, four hundred fifty-six thousand, five hundred twenty-five".