551211202005305 has 16 divisors (see below), whose sum is σ = 667311481362960. Its totient is φ = 437063654565888.

The previous prime is 551211202005271. The next prime is 551211202005307. The reversal of 551211202005305 is 503500202112155.

It can be written as a sum of positive squares in 8 ways, for example, as 115597074585664 + 435614127419641 = 10751608^2 + 20871371^2 .

It is a cyclic number.

It is not a de Polignac number, because 551211202005305 - 2¹⁴ = 551211201988921 is a prime.

It is a super-2 number, since 2×551211202005305² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551211202005307) 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, 83203469 + ... + 89583701.

It is an arithmetic number, because the mean of its divisors is an integer number (41706967585185).

Almost surely, 2^{551211202005305} is an apocalyptic number.

It is an amenable number.

551211202005305 is a deficient number, since it is larger than the sum of its proper divisors (116100279357655).

551211202005305 is a wasteful number, since it uses less digits than its factorization.

551211202005305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6533260.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 551211202005305 in words is "five hundred fifty-one trillion, two hundred eleven billion, two hundred two million, five thousand, three hundred five".