9995549 has 2 divisors, whose sum is σ = 9995550. Its totient is φ = 9995548.

The previous prime is 9995533. The next prime is 9995563. The reversal of 9995549 is 9455999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 28900 = 3157^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 9995549 - 2⁴ = 9995533 is a prime.

It is a super-2 number, since 2×9995549² = 199821999622802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9995497 and 9995506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9995519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997774 + 4997775.

It is an arithmetic number, because the mean of its divisors is an integer number (4997775).

Almost surely, 2^9995549 is an apocalyptic number.

It is an amenable number.

9995549 is a deficient number, since it is larger than the sum of its proper divisors (1).

9995549 is an equidigital number, since it uses as much as digits as its factorization.

9995549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 656100, while the sum is 50.

The square root of 9995549 is about 3161.5738169462. The cubic root of 9995549 is about 215.4114996302.

The spelling of 9995549 in words is "nine million, nine hundred ninety-five thousand, five hundred forty-nine".