550004991 has 8 divisors (see below), whose sum is σ = 735188784. Its totient is φ = 365745600.

The previous prime is 550004971. The next prime is 550004993. The reversal of 550004991 is 199400055.

550004991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 550004991 - 2¹⁵ = 549972223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550004993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229710 + ... + 232091.

It is an arithmetic number, because the mean of its divisors is an integer number (91898598).

Almost surely, 2^550004991 is an apocalyptic number.

550004991 is a deficient number, since it is larger than the sum of its proper divisors (185183793).

550004991 is a wasteful number, since it uses less digits than its factorization.

550004991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462201.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 550004991 is about 23452.1852073533. The cubic root of 550004991 is about 819.3237489159.

The spelling of 550004991 in words is "five hundred fifty million, four thousand, nine hundred ninety-one".