25066703989 has 2 divisors, whose sum is σ = 25066703990. Its totient is φ = 25066703988.

The previous prime is 25066703957. The next prime is 25066704001. The reversal of 25066703989 is 98930766052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16341275889 + 8725428100 = 127833^2 + 93410^2 .

It is a cyclic number.

It is not a de Polignac number, because 25066703989 - 2⁵ = 25066703957 is a prime.

It is a super-3 number, since 3×25066703989³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25066703489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12533351994 + 12533351995.

It is an arithmetic number, because the mean of its divisors is an integer number (12533351995).

Almost surely, 2^25066703989 is an apocalyptic number.

It is an amenable number.

25066703989 is a deficient number, since it is larger than the sum of its proper divisors (1).

25066703989 is an equidigital number, since it uses as much as digits as its factorization.

25066703989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 25066703989 in words is "twenty-five billion, sixty-six million, seven hundred three thousand, nine hundred eighty-nine".