550149831 has 24 divisors (see below), whose sum is σ = 990747264. Its totient is φ = 285791760.

The previous prime is 550149793. The next prime is 550149871. The reversal of 550149831 is 138941055.

550149831 is a `hidden beast` number, since 550 + 14 + 98 + 3 + 1 = 666.

550149831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550149831 - 2⁷ = 550149703 is a prime.

It is a super-2 number, since 2×550149831² = 605329673098657122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550149871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396241 + ... + 397626.

It is an arithmetic number, because the mean of its divisors is an integer number (41281136).

Almost surely, 2^550149831 is an apocalyptic number.

550149831 is a deficient number, since it is larger than the sum of its proper divisors (440597433).

550149831 is a wasteful number, since it uses less digits than its factorization.

550149831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793891 (or 793888 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 550149831 is about 23455.2729892449. The cubic root of 550149831 is about 819.3956636792.

The spelling of 550149831 in words is "five hundred fifty million, one hundred forty-nine thousand, eight hundred thirty-one".