550150391 has 24 divisors (see below), whose sum is σ = 652327200. Its totient is φ = 463776768.

The previous prime is 550150361. The next prime is 550150417. The reversal of 550150391 is 193051055.

It is a happy number.

It is not a de Polignac number, because 550150391 - 2⁶ = 550150327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550150361) 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, 2140535 + ... + 2140791.

It is an arithmetic number, because the mean of its divisors is an integer number (27180300).

Almost surely, 2^550150391 is an apocalyptic number.

550150391 is a deficient number, since it is larger than the sum of its proper divisors (102176809).

550150391 is an frugal number, since it uses more digits than its factorization.

550150391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 550150391 is about 23455.2849268560. The cubic root of 550150391 is about 819.3959417013.

The spelling of 550150391 in words is "five hundred fifty million, one hundred fifty thousand, three hundred ninety-one".