550985450 has 24 divisors (see below), whose sum is σ = 1029329580. Its totient is φ = 219427200.

The previous prime is 550985443. The next prime is 550985459. The reversal of 550985450 is 54589055.

It can be written as a sum of positive squares in 6 ways, for example, as 399720049 + 151265401 = 19993^2 + 12299^2 .

It is a super-2 number, since 2×550985450² = 607169932223405000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 550985398 and 550985407.

It is not an unprimeable number, because it can be changed into a prime (550985459) 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 in 11 ways as a sum of consecutive naturals, for example, 12611 + ... + 35510.

Almost surely, 2^550985450 is an apocalyptic number.

550985450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550985450 is a deficient number, since it is larger than the sum of its proper divisors (478344130).

550985450 is a wasteful number, since it uses less digits than its factorization.

550985450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48362 (or 48357 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 41.

The square root of 550985450 is about 23473.0792611451. The cubic root of 550985450 is about 819.8103120624.

The spelling of 550985450 in words is "five hundred fifty million, nine hundred eighty-five thousand, four hundred fifty".