551343045403 has 16 divisors (see below), whose sum is σ = 558949188096. Its totient is φ = 543782269440.

The previous prime is 551343045329. The next prime is 551343045527. The reversal of 551343045403 is 304540343155.

551343045403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 551343045403 - 2¹³ = 551343037211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551343049403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79019451 + ... + 79026427.

It is an arithmetic number, because the mean of its divisors is an integer number (34934324256).

Almost surely, 2^551343045403 is an apocalyptic number.

551343045403 is a deficient number, since it is larger than the sum of its proper divisors (7606142693).

551343045403 is a wasteful number, since it uses less digits than its factorization.

551343045403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 551343045403 its reverse (304540343155), we get a palindrome (855883388558).

The spelling of 551343045403 in words is "five hundred fifty-one billion, three hundred forty-three million, forty-five thousand, four hundred three".