551403333140 has 72 divisors (see below), whose sum is σ = 1339773499680. Its totient is φ = 189957113280.

The previous prime is 551403333109. The next prime is 551403333181. The reversal of 551403333140 is 41333304155.

It is a junction number, because it is equal to n+sod(n) for n = 551403333097 and 551403333106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5950142 + ... + 6042101.

Almost surely, 2^551403333140 is an apocalyptic number.

It is an amenable number.

551403333140 is an abundant number, since it is smaller than the sum of its proper divisors (788370166540).

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

551403333140 is a wasteful number, since it uses less digits than its factorization.

551403333140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11992293 (or 11992280 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 551403333140 its reverse (41333304155), we get a palindrome (592736637295).

The spelling of 551403333140 in words is "five hundred fifty-one billion, four hundred three million, three hundred thirty-three thousand, one hundred forty".