9055815997 has 2 divisors, whose sum is σ = 9055815998. Its totient is φ = 9055815996.

The previous prime is 9055815917. The next prime is 9055816019. The reversal of 9055815997 is 7995185509.

9055815997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4669535556 + 4386280441 = 68334^2 + 66229^2 .

It is a cyclic number.

It is not a de Polignac number, because 9055815997 - 2¹⁹ = 9055291709 is a prime.

It is a super-2 number, since 2×9055815997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9055815907) by changing a digit.

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 as a sum of consecutive naturals, namely, 4527907998 + 4527907999.

It is an arithmetic number, because the mean of its divisors is an integer number (4527907999).

Almost surely, 2^9055815997 is an apocalyptic number.

It is an amenable number.

9055815997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9055815997 is an equidigital number, since it uses as much as digits as its factorization.

9055815997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103000, while the sum is 58.

The square root of 9055815997 is about 95162.0512441803. The cubic root of 9055815997 is about 2084.3750365018.

The spelling of 9055815997 in words is "nine billion, fifty-five million, eight hundred fifteen thousand, nine hundred ninety-seven".