6801250513 has 2 divisors, whose sum is σ = 6801250514. Its totient is φ = 6801250512.

The previous prime is 6801250499. The next prime is 6801250567. The reversal of 6801250513 is 3150521086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4878603409 + 1922647104 = 69847^2 + 43848^2 .

It is a cyclic number.

It is not a de Polignac number, because 6801250513 - 2¹³ = 6801242321 is a prime.

It is not a weakly prime, because it can be changed into another prime (6801250613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400625256 + 3400625257.

It is an arithmetic number, because the mean of its divisors is an integer number (3400625257).

Almost surely, 2^6801250513 is an apocalyptic number.

It is an amenable number.

6801250513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6801250513 is an equidigital number, since it uses as much as digits as its factorization.

6801250513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 6801250513 is about 82469.6945125905. The cubic root of 6801250513 is about 1894.6526016893.

Adding to 6801250513 its reverse (3150521086), we get a palindrome (9951771599).

The spelling of 6801250513 in words is "six billion, eight hundred one million, two hundred fifty thousand, five hundred thirteen".