551416331243 has 6 divisors (see below), whose sum is σ = 585760601316. Its totient is φ = 518980076192.

The previous prime is 551416331239. The next prime is 551416331261. The reversal of 551416331243 is 342133614155.

It is not a de Polignac number, because 551416331243 - 2² = 551416331239 is a prime.

It is a super-3 number, since 3×551416331243³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551416331197 and 551416331206.

It is not an unprimeable number, because it can be changed into a prime (551416331443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 954007205 + ... + 954007782.

It is an arithmetic number, because the mean of its divisors is an integer number (97626766886).

Almost surely, 2^551416331243 is an apocalyptic number.

551416331243 is a deficient number, since it is larger than the sum of its proper divisors (34344270073).

551416331243 is a wasteful number, since it uses less digits than its factorization.

551416331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908015021 (or 1908015004 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

Adding to 551416331243 its reverse (342133614155), we get a palindrome (893549945398).

The spelling of 551416331243 in words is "five hundred fifty-one billion, four hundred sixteen million, three hundred thirty-one thousand, two hundred forty-three".