550142311 has 4 divisors (see below), whose sum is σ = 551719000. Its totient is φ = 548565624.

The previous prime is 550142309. The next prime is 550142323. The reversal of 550142311 is 113241055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550142311 - 2¹ = 550142309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550142371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787821 + ... + 788518.

It is an arithmetic number, because the mean of its divisors is an integer number (137929750).

Almost surely, 2^550142311 is an apocalyptic number.

550142311 is a deficient number, since it is larger than the sum of its proper divisors (1576689).

550142311 is a wasteful number, since it uses less digits than its factorization.

550142311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576688.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 550142311 is about 23455.1126835920. The cubic root of 550142311 is about 819.3919302214.

Adding to 550142311 its reverse (113241055), we get a palindrome (663383366).

The spelling of 550142311 in words is "five hundred fifty million, one hundred forty-two thousand, three hundred eleven".