999550052 has 6 divisors (see below), whose sum is σ = 1749212598. Its totient is φ = 499775024.

The previous prime is 999550051. The next prime is 999550099. The reversal of 999550052 is 250055999.

It can be written as a sum of positive squares in only one way, i.e., 616330276 + 383219776 = 24826^2 + 19576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 999549985 and 999550012.

It is not an unprimeable number, because it can be changed into a prime (999550051) 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, 124943753 + ... + 124943760.

It is an arithmetic number, because the mean of its divisors is an integer number (291535433).

Almost surely, 2^999550052 is an apocalyptic number.

It is an amenable number.

999550052 is a deficient number, since it is larger than the sum of its proper divisors (749662546).

999550052 is a wasteful number, since it uses less digits than its factorization.

999550052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249887517 (or 249887515 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 999550052 is about 31615.6614986940. The cubic root of 999550052 is about 999.8499948329.

It can be divided in two parts, 99955005 and 2, that multiplied together give a triangular number (199910010 = T₁₉₉₉₅).

The spelling of 999550052 in words is "nine hundred ninety-nine million, five hundred fifty thousand, fifty-two".