999949000553 has 2 divisors, whose sum is σ = 999949000554. Its totient is φ = 999949000552.

The previous prime is 999949000541. The next prime is 999949000579. The reversal of 999949000553 is 355000949999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999946000729 + 2999824 = 999973^2 + 1732^2 .

It is a cyclic number.

It is not a de Polignac number, because 999949000553 - 2⁴ = 999949000537 is a prime.

It is a super-4 number, since 4×999949000553⁴ (a number of 49 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (999949000513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499974500276 + 499974500277.

It is an arithmetic number, because the mean of its divisors is an integer number (499974500277).

Almost surely, 2^999949000553 is an apocalyptic number.

It is an amenable number.

999949000553 is a deficient number, since it is larger than the sum of its proper divisors (1).

999949000553 is an equidigital number, since it uses as much as digits as its factorization.

999949000553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17714700, while the sum is 62.

The spelling of 999949000553 in words is "nine hundred ninety-nine billion, nine hundred forty-nine million, five hundred fifty-three", and thus it is an aban number.