52121717201 has 2 divisors, whose sum is σ = 52121717202. Its totient is φ = 52121717200.

The previous prime is 52121717189. The next prime is 52121717233. The reversal of 52121717201 is 10271712125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37124040976 + 14997676225 = 192676^2 + 122465^2 .

It is a cyclic number.

It is not a de Polignac number, because 52121717201 - 2¹⁰ = 52121716177 is a prime.

It is not a weakly prime, because it can be changed into another prime (52121717101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060858600 + 26060858601.

It is an arithmetic number, because the mean of its divisors is an integer number (26060858601).

Almost surely, 2^52121717201 is an apocalyptic number.

It is an amenable number.

52121717201 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121717201 is an equidigital number, since it uses as much as digits as its factorization.

52121717201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 29.

The spelling of 52121717201 in words is "fifty-two billion, one hundred twenty-one million, seven hundred seventeen thousand, two hundred one".