551120024 has 64 divisors (see below), whose sum is σ = 1290912000. Its totient is φ = 214752384.

The previous prime is 551120021. The next prime is 551120039. The reversal of 551120024 is 420021155.

It is a junction number, because it is equal to n+sod(n) for n = 551119978 and 551120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43127 + ... + 54425.

It is an arithmetic number, because the mean of its divisors is an integer number (20170500).

Almost surely, 2^551120024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551120024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645456000).

551120024 is an abundant number, since it is smaller than the sum of its proper divisors (739791976).

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

551120024 is a wasteful number, since it uses less digits than its factorization.

551120024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11392 (or 11388 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 551120024 is about 23475.9456465549. The cubic root of 551120024 is about 819.8770507710.

Adding to 551120024 its reverse (420021155), we get a palindrome (971141179).

The spelling of 551120024 in words is "five hundred fifty-one million, one hundred twenty thousand, twenty-four".