52121062369 has 2 divisors, whose sum is σ = 52121062370. Its totient is φ = 52121062368.

The previous prime is 52121062291. The next prime is 52121062379. The reversal of 52121062369 is 96326012125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29714864400 + 22406197969 = 172380^2 + 149687^2 .

It is a cyclic number.

It is not a de Polignac number, because 52121062369 - 2⁷ = 52121062241 is a prime.

It is a super-2 number, since 2×52121062369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52121062379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060531184 + 26060531185.

It is an arithmetic number, because the mean of its divisors is an integer number (26060531185).

Almost surely, 2^52121062369 is an apocalyptic number.

It is an amenable number.

52121062369 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121062369 is an equidigital number, since it uses as much as digits as its factorization.

52121062369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 52121062369 in words is "fifty-two billion, one hundred twenty-one million, sixty-two thousand, three hundred sixty-nine".