52152217549 has 2 divisors, whose sum is σ = 52152217550. Its totient is φ = 52152217548.

The previous prime is 52152217543. The next prime is 52152217589. The reversal of 52152217549 is 94571225125.

52152217549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50550777225 + 1601440324 = 224835^2 + 40018^2 .

It is a cyclic number.

It is not a de Polignac number, because 52152217549 - 2¹⁵ = 52152184781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52152217543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26076108774 + 26076108775.

It is an arithmetic number, because the mean of its divisors is an integer number (26076108775).

Almost surely, 2^52152217549 is an apocalyptic number.

It is an amenable number.

52152217549 is a deficient number, since it is larger than the sum of its proper divisors (1).

52152217549 is an equidigital number, since it uses as much as digits as its factorization.

52152217549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 43.

The spelling of 52152217549 in words is "fifty-two billion, one hundred fifty-two million, two hundred seventeen thousand, five hundred forty-nine".