25530052550489 has 2 divisors, whose sum is σ = 25530052550490. Its totient is φ = 25530052550488.

The previous prime is 25530052550461. The next prime is 25530052550543. The reversal of 25530052550489 is 98405525003552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25523108161600 + 6944388889 = 5052040^2 + 83333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25530052550489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25530052550489.

It is not a weakly prime, because it can be changed into another prime (25530052550449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765026275244 + 12765026275245.

It is an arithmetic number, because the mean of its divisors is an integer number (12765026275245).

Almost surely, 2^{25530052550489} is an apocalyptic number.

It is an amenable number.

25530052550489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25530052550489 is an equidigital number, since it uses as much as digits as its factorization.

25530052550489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800000, while the sum is 53.

The spelling of 25530052550489 in words is "twenty-five trillion, five hundred thirty billion, fifty-two million, five hundred fifty thousand, four hundred eighty-nine".