550240420 has 48 divisors (see below), whose sum is σ = 1183029120. Its totient is φ = 214914816.

The previous prime is 550240417. The next prime is 550240429. The reversal of 550240420 is 24042055.

It is a junction number, because it is equal to n+sod(n) for n = 550240391 and 550240400.

It is not an unprimeable number, because it can be changed into a prime (550240429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148551 + ... + 152209.

It is an arithmetic number, because the mean of its divisors is an integer number (24646440).

Almost surely, 2^550240420 is an apocalyptic number.

It is an amenable number.

550240420 is an abundant number, since it is smaller than the sum of its proper divisors (632788700).

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

550240420 is a wasteful number, since it uses less digits than its factorization.

550240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844 (or 3842 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 550240420 is about 23457.2040107085. The cubic root of 550240420 is about 819.4406357672.

Adding to 550240420 its reverse (24042055), we get a palindrome (574282475).

The spelling of 550240420 in words is "five hundred fifty million, two hundred forty thousand, four hundred twenty".