52356596921 has 2 divisors, whose sum is σ = 52356596922. Its totient is φ = 52356596920.

The previous prime is 52356596899. The next prime is 52356596933. The reversal of 52356596921 is 12969565325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51218479225 + 1138117696 = 226315^2 + 33736^2 .

It is a cyclic number.

It is not a de Polignac number, because 52356596921 - 2²⁶ = 52289488057 is a prime.

It is a super-2 number, since 2×52356596921² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52356593921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26178298460 + 26178298461.

It is an arithmetic number, because the mean of its divisors is an integer number (26178298461).

Almost surely, 2^52356596921 is an apocalyptic number.

It is an amenable number.

52356596921 is a deficient number, since it is larger than the sum of its proper divisors (1).

52356596921 is an equidigital number, since it uses as much as digits as its factorization.

52356596921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374000, while the sum is 53.

The spelling of 52356596921 in words is "fifty-two billion, three hundred fifty-six million, five hundred ninety-six thousand, nine hundred twenty-one".