551330445353 has 4 divisors (see below), whose sum is σ = 564777529428. Its totient is φ = 537883361280.

The previous prime is 551330445331. The next prime is 551330445377. The reversal of 551330445353 is 353544033155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10698178624 + 540632266729 = 103432^2 + 735277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551330445353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 13447084033 = 551330445353 / (5 + 5 + 1 + 3 + 3 + 0 + 4 + 4 + 5 + 3 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 551330445353.

It is not an unprimeable number, because it can be changed into a prime (551330415353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6723541976 + ... + 6723542057.

It is an arithmetic number, because the mean of its divisors is an integer number (141194382357).

Almost surely, 2^551330445353 is an apocalyptic number.

It is an amenable number.

551330445353 is a deficient number, since it is larger than the sum of its proper divisors (13447084075).

551330445353 is a wasteful number, since it uses less digits than its factorization.

551330445353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13447084074.

The product of its (nonzero) digits is 810000, while the sum is 41.

The spelling of 551330445353 in words is "five hundred fifty-one billion, three hundred thirty million, four hundred forty-five thousand, three hundred fifty-three".