9554645549 has 2 divisors, whose sum is σ = 9554645550. Its totient is φ = 9554645548.

The previous prime is 9554645489. The next prime is 9554645561. The reversal of 9554645549 is 9455464559.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7311960100 + 2242685449 = 85510^2 + 47357^2 .

It is a cyclic number.

It is not a de Polignac number, because 9554645549 - 2⁸ = 9554645293 is a prime.

It is a super-2 number, since 2×9554645549² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9554645494 and 9554645503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9554645249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4777322774 + 4777322775.

It is an arithmetic number, because the mean of its divisors is an integer number (4777322775).

Almost surely, 2^9554645549 is an apocalyptic number.

It is an amenable number.

9554645549 is a deficient number, since it is larger than the sum of its proper divisors (1).

9554645549 is an equidigital number, since it uses as much as digits as its factorization.

9554645549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440000, while the sum is 56.

The square root of 9554645549 is about 97747.8672350451. The cubic root of 9554645549 is about 2121.9648886619.

The spelling of 9554645549 in words is "nine billion, five hundred fifty-four million, six hundred forty-five thousand, five hundred forty-nine".