551653355239203 has 128 divisors (see below), whose sum is σ = 929603479633920. Its totient is φ = 284007971681280.

The previous prime is 551653355239013. The next prime is 551653355239213. The reversal of 551653355239203 is 302932553356155.

It is a Cunningham number, because it is equal to 23487302²-1.

It is not a de Polignac number, because 551653355239203 - 2¹⁰ = 551653355238179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551653355239213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14303747026 + ... + 14303785592.

It is an arithmetic number, because the mean of its divisors is an integer number (7262527184640).

Almost surely, 2^{551653355239203} is an apocalyptic number.

551653355239203 is a deficient number, since it is larger than the sum of its proper divisors (377950124394717).

551653355239203 is a wasteful number, since it uses less digits than its factorization.

551653355239203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63577.

The product of its (nonzero) digits is 54675000, while the sum is 57.

The spelling of 551653355239203 in words is "five hundred fifty-one trillion, six hundred fifty-three billion, three hundred fifty-five million, two hundred thirty-nine thousand, two hundred three".