551819344 has 40 divisors (see below), whose sum is σ = 1129348352. Its totient is φ = 260789760.

The previous prime is 551819327. The next prime is 551819347. The reversal of 551819344 is 443918155.

It is a junction number, because it is equal to n+sod(n) for n = 551819297 and 551819306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551819347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8392 + ... + 34264.

Almost surely, 2^551819344 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 551819344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564674176).

551819344 is an abundant number, since it is smaller than the sum of its proper divisors (577529008).

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

551819344 is a wasteful number, since it uses less digits than its factorization.

551819344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25955 (or 25949 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 551819344 is about 23490.8353193325. The cubic root of 551819344 is about 820.2236867444.

The spelling of 551819344 in words is "five hundred fifty-one million, eight hundred nineteen thousand, three hundred forty-four".