52263605521 has 2 divisors, whose sum is σ = 52263605522. Its totient is φ = 52263605520.

The previous prime is 52263605519. The next prime is 52263605549. The reversal of 52263605521 is 12550636225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52251102225 + 12503296 = 228585^2 + 3536^2 .

It is a cyclic number.

It is not a de Polignac number, because 52263605521 - 2¹ = 52263605519 is a prime.

Together with 52263605519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52263605221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26131802760 + 26131802761.

It is an arithmetic number, because the mean of its divisors is an integer number (26131802761).

Almost surely, 2^52263605521 is an apocalyptic number.

It is an amenable number.

52263605521 is a deficient number, since it is larger than the sum of its proper divisors (1).

52263605521 is an equidigital number, since it uses as much as digits as its factorization.

52263605521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 52263605521 in words is "fifty-two billion, two hundred sixty-three million, six hundred five thousand, five hundred twenty-one".