554967999 has 6 divisors (see below), whose sum is σ = 801620456. Its totient is φ = 369978660.

The previous prime is 554967977. The next prime is 554968049. The reversal of 554967999 is 999769455.

554967999 is a `hidden beast` number, since 55 + 496 + 7 + 9 + 99 = 666.

It is not a de Polignac number, because 554967999 - 2⁷ = 554967871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554967199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30831547 + ... + 30831564.

Almost surely, 2^554967999 is an apocalyptic number.

554967999 is a deficient number, since it is larger than the sum of its proper divisors (246652457).

554967999 is a wasteful number, since it uses less digits than its factorization.

554967999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61663117 (or 61663114 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 63.

The square root of 554967999 is about 23557.7587855891. The cubic root of 554967999 is about 821.7807814020.

The spelling of 554967999 in words is "five hundred fifty-four million, nine hundred sixty-seven thousand, nine hundred ninety-nine".