9957554009 has 4 divisors (see below), whose sum is σ = 10723519716. Its totient is φ = 9191588304.

The previous prime is 9957553993. The next prime is 9957554017. The reversal of 9957554009 is 9004557599.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9004557599 = 1789 ⋅5033291.

It can be written as a sum of positive squares in 2 ways, for example, as 445843225 + 9511710784 = 21115^2 + 97528^2 .

It is a cyclic number.

It is not a de Polignac number, because 9957554009 - 2⁴ = 9957553993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9957554039) 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, 382982834 + ... + 382982859.

It is an arithmetic number, because the mean of its divisors is an integer number (2680879929).

Almost surely, 2^9957554009 is an apocalyptic number.

It is an amenable number.

9957554009 is a deficient number, since it is larger than the sum of its proper divisors (765965707).

9957554009 is a wasteful number, since it uses less digits than its factorization.

9957554009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765965706.

The product of its (nonzero) digits is 2551500, while the sum is 53.

The square root of 9957554009 is about 99787.5443580009. The cubic root of 9957554009 is about 2151.3821298025.

The spelling of 9957554009 in words is "nine billion, nine hundred fifty-seven million, five hundred fifty-four thousand, nine".