52502181952361 has 2 divisors, whose sum is σ = 52502181952362. Its totient is φ = 52502181952360.

The previous prime is 52502181952351. The next prime is 52502181952393. The reversal of 52502181952361 is 16325918120525.

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., 45861541573225 + 6640640379136 = 6772115^2 + 2576944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52502181952361 is a prime.

It is a super-2 number, since 2×52502181952361² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52502181952351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26251090976180 + 26251090976181.

It is an arithmetic number, because the mean of its divisors is an integer number (26251090976181).

Almost surely, 2^{52502181952361} is an apocalyptic number.

It is an amenable number.

52502181952361 is a deficient number, since it is larger than the sum of its proper divisors (1).

52502181952361 is an equidigital number, since it uses as much as digits as its factorization.

52502181952361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 52502181952361 in words is "fifty-two trillion, five hundred two billion, one hundred eighty-one million, nine hundred fifty-two thousand, three hundred sixty-one".