52518719249 has 2 divisors, whose sum is σ = 52518719250. Its totient is φ = 52518719248.

The previous prime is 52518719233. The next prime is 52518719263. The reversal of 52518719249 is 94291781525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40720414849 + 11798304400 = 201793^2 + 108620^2 .

It is a cyclic number.

It is not a de Polignac number, because 52518719249 - 2⁴ = 52518719233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52518719249.

It is not a weakly prime, because it can be changed into another prime (52518719269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26259359624 + 26259359625.

It is an arithmetic number, because the mean of its divisors is an integer number (26259359625).

Almost surely, 2^52518719249 is an apocalyptic number.

It is an amenable number.

52518719249 is a deficient number, since it is larger than the sum of its proper divisors (1).

52518719249 is an equidigital number, since it uses as much as digits as its factorization.

52518719249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The spelling of 52518719249 in words is "fifty-two billion, five hundred eighteen million, seven hundred nineteen thousand, two hundred forty-nine".