52521342449 has 2 divisors, whose sum is σ = 52521342450. Its totient is φ = 52521342448.

The previous prime is 52521342371. The next prime is 52521342463. The reversal of 52521342449 is 94424312525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45633504400 + 6887838049 = 213620^2 + 82993^2 .

It is a cyclic number.

It is not a de Polignac number, because 52521342449 - 2²⁴ = 52504565233 is a prime.

It is not a weakly prime, because it can be changed into another prime (52521332449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26260671224 + 26260671225.

It is an arithmetic number, because the mean of its divisors is an integer number (26260671225).

Almost surely, 2^52521342449 is an apocalyptic number.

It is an amenable number.

52521342449 is a deficient number, since it is larger than the sum of its proper divisors (1).

52521342449 is an equidigital number, since it uses as much as digits as its factorization.

52521342449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

The spelling of 52521342449 in words is "fifty-two billion, five hundred twenty-one million, three hundred forty-two thousand, four hundred forty-nine".