528565820249 has 2 divisors, whose sum is σ = 528565820250. Its totient is φ = 528565820248.

The previous prime is 528565820239. The next prime is 528565820347. The reversal of 528565820249 is 942028565825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296106840649 + 232458979600 = 544157^2 + 482140^2 .

It is a cyclic number.

It is not a de Polignac number, because 528565820249 - 2¹² = 528565816153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 528565820194 and 528565820203.

It is not a weakly prime, because it can be changed into another prime (528565820219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264282910124 + 264282910125.

It is an arithmetic number, because the mean of its divisors is an integer number (264282910125).

Almost surely, 2^528565820249 is an apocalyptic number.

It is an amenable number.

528565820249 is a deficient number, since it is larger than the sum of its proper divisors (1).

528565820249 is an equidigital number, since it uses as much as digits as its factorization.

528565820249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 528565820249 in words is "five hundred twenty-eight billion, five hundred sixty-five million, eight hundred twenty thousand, two hundred forty-nine".