68576513 has 2 divisors, whose sum is σ = 68576514. Its totient is φ = 68576512.

The previous prime is 68576507. The next prime is 68576527. The reversal of 68576513 is 31567586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65011969 + 3564544 = 8063^2 + 1888^2 .

It is a cyclic number.

It is not a de Polignac number, because 68576513 - 2⁸ = 68576257 is a prime.

It is not a weakly prime, because it can be changed into another prime (68576413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34288256 + 34288257.

It is an arithmetic number, because the mean of its divisors is an integer number (34288257).

Almost surely, 2^68576513 is an apocalyptic number.

It is an amenable number.

68576513 is a deficient number, since it is larger than the sum of its proper divisors (1).

68576513 is an equidigital number, since it uses as much as digits as its factorization.

68576513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The square root of 68576513 is about 8281.0937079591. The cubic root of 68576513 is about 409.3157593744.

The spelling of 68576513 in words is "sixty-eight million, five hundred seventy-six thousand, five hundred thirteen".