551134368 has 240 divisors, whose sum is σ = 1766096640. Its totient is φ = 168428160.

The previous prime is 551134343. The next prime is 551134391. The reversal of 551134368 is 863431155.

551134368 is a `hidden beast` number, since 551 + 1 + 3 + 43 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17778513 + ... + 17778543.

It is an arithmetic number, because the mean of its divisors is an integer number (7358736).

Almost surely, 2^551134368 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 551134368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (883048320).

551134368 is an abundant number, since it is smaller than the sum of its proper divisors (1214962272).

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

551134368 is an equidigital number, since it uses as much as digits as its factorization.

551134368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 55 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 551134368 is about 23476.2511487673. The cubic root of 551134368 is about 819.8841636889.

The spelling of 551134368 in words is "five hundred fifty-one million, one hundred thirty-four thousand, three hundred sixty-eight".