6525388789 has 2 divisors, whose sum is σ = 6525388790. Its totient is φ = 6525388788.

The previous prime is 6525388787. The next prime is 6525388829. The reversal of 6525388789 is 9878835256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5036740900 + 1488647889 = 70970^2 + 38583^2 .

It is a cyclic number.

It is not a de Polignac number, because 6525388789 - 2¹ = 6525388787 is a prime.

Together with 6525388787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6525388787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3262694394 + 3262694395.

It is an arithmetic number, because the mean of its divisors is an integer number (3262694395).

Almost surely, 2^6525388789 is an apocalyptic number.

It is an amenable number.

6525388789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6525388789 is an equidigital number, since it uses as much as digits as its factorization.

6525388789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 61.

The square root of 6525388789 is about 80779.8786146649. The cubic root of 6525388789 is about 1868.6822661937.

The spelling of 6525388789 in words is "six billion, five hundred twenty-five million, three hundred eighty-eight thousand, seven hundred eighty-nine".