551433138 has 8 divisors (see below), whose sum is σ = 1102866288. Its totient is φ = 183811044.

The previous prime is 551433137. The next prime is 551433139. The reversal of 551433138 is 831334155.

551433138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (551433137) and next prime (551433139).

It is a sphenic number, since it is the product of 3 distinct primes.

551433138 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551433099 and 551433108.

It is not an unprimeable number, because it can be changed into a prime (551433137) 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, 45952756 + ... + 45952767.

It is an arithmetic number, because the mean of its divisors is an integer number (137858286).

Almost surely, 2^551433138 is an apocalyptic number.

551433138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

551433138 is a wasteful number, since it uses less digits than its factorization.

551433138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91905528.

The product of its digits is 21600, while the sum is 33.

The square root of 551433138 is about 23482.6135257556. The cubic root of 551433138 is about 820.0322900233.

The spelling of 551433138 in words is "five hundred fifty-one million, four hundred thirty-three thousand, one hundred thirty-eight".