52744257521 has 2 divisors, whose sum is σ = 52744257522. Its totient is φ = 52744257520.

The previous prime is 52744257479. The next prime is 52744257551. The reversal of 52744257521 is 12575244725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42444240400 + 10300017121 = 206020^2 + 101489^2 .

It is a cyclic number.

It is not a de Polignac number, because 52744257521 - 2¹⁰ = 52744256497 is a prime.

It is not a weakly prime, because it can be changed into another prime (52744257551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26372128760 + 26372128761.

It is an arithmetic number, because the mean of its divisors is an integer number (26372128761).

Almost surely, 2^52744257521 is an apocalyptic number.

It is an amenable number.

52744257521 is a deficient number, since it is larger than the sum of its proper divisors (1).

52744257521 is an equidigital number, since it uses as much as digits as its factorization.

52744257521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 784000, while the sum is 44.

The spelling of 52744257521 in words is "fifty-two billion, seven hundred forty-four million, two hundred fifty-seven thousand, five hundred twenty-one".