551001275439 has 16 divisors (see below), whose sum is σ = 766682496000. Its totient is φ = 351330120416.

The previous prime is 551001275399. The next prime is 551001275441. The reversal of 551001275439 is 934572100155.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 551001275439 - 2¹¹ = 551001273391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551001275439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551001275479) 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 15 ways as a sum of consecutive naturals, for example, 375397 + ... + 1114865.

It is an arithmetic number, because the mean of its divisors is an integer number (47917656000).

Almost surely, 2^551001275439 is an apocalyptic number.

551001275439 is a deficient number, since it is larger than the sum of its proper divisors (215681220561).

551001275439 is a wasteful number, since it uses less digits than its factorization.

551001275439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750294.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 551001275439 in words is "five hundred fifty-one billion, one million, two hundred seventy-five thousand, four hundred thirty-nine".