551781281353 has 8 divisors (see below), whose sum is σ = 573200482176. Its totient is φ = 530741181600.

The previous prime is 551781281347. The next prime is 551781281411. The reversal of 551781281353 is 353182187155.

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

It is a cyclic number.

It is not a de Polignac number, because 551781281353 - 2²⁵ = 551747726921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551781281297 and 551781281306.

It is not an unprimeable number, because it can be changed into a prime (551781281333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94772301 + ... + 94778122.

It is an arithmetic number, because the mean of its divisors is an integer number (71650060272).

Almost surely, 2^551781281353 is an apocalyptic number.

It is an amenable number.

551781281353 is a deficient number, since it is larger than the sum of its proper divisors (21419200823).

551781281353 is a wasteful number, since it uses less digits than its factorization.

551781281353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189550535.

The product of its digits is 1008000, while the sum is 49.

The spelling of 551781281353 in words is "five hundred fifty-one billion, seven hundred eighty-one million, two hundred eighty-one thousand, three hundred fifty-three".