550831842 has 48 divisors (see below), whose sum is σ = 1310774400. Its totient is φ = 165789600.

The previous prime is 550831837. The next prime is 550831871. The reversal of 550831842 is 248138055.

It is a happy number.

It is a super-2 number, since 2×550831842² = 606831436322225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550831797 and 550831806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20167 + ... + 38837.

It is an arithmetic number, because the mean of its divisors is an integer number (27307800).

Almost surely, 2^550831842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550831842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655387200).

550831842 is an abundant number, since it is smaller than the sum of its proper divisors (759942558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550831842 is a wasteful number, since it uses less digits than its factorization.

550831842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18839 (or 18836 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 550831842 is about 23469.8070294581. The cubic root of 550831842 is about 819.7341206211.

Adding to 550831842 its reverse (248138055), we get a palindrome (798969897).

The spelling of 550831842 in words is "five hundred fifty million, eight hundred thirty-one thousand, eight hundred forty-two".