550654987 has 8 divisors (see below), whose sum is σ = 577448640. Its totient is φ = 524381760.

The previous prime is 550654981. The next prime is 550654999. The reversal of 550654987 is 789456055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550654987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550654987.

It is not an unprimeable number, because it can be changed into a prime (550654981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127939 + ... + 132172.

It is an arithmetic number, because the mean of its divisors is an integer number (72181080).

Almost surely, 2^550654987 is an apocalyptic number.

550654987 is a deficient number, since it is larger than the sum of its proper divisors (26793653).

550654987 is a wasteful number, since it uses less digits than its factorization.

550654987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260213.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 550654987 is about 23466.0390138600. The cubic root of 550654987 is about 819.6463808397.

The spelling of 550654987 in words is "five hundred fifty million, six hundred fifty-four thousand, nine hundred eighty-seven".