68577563 has 2 divisors, whose sum is σ = 68577564. Its totient is φ = 68577562.

The previous prime is 68577557. The next prime is 68577571. The reversal of 68577563 is 36577586.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68577563 - 2⁸ = 68577307 is a prime.

It is not a weakly prime, because it can be changed into another prime (68577533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34288781 + 34288782.

It is an arithmetic number, because the mean of its divisors is an integer number (34288782).

Almost surely, 2^68577563 is an apocalyptic number.

68577563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68577563 is an equidigital number, since it uses as much as digits as its factorization.

68577563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 47.

The square root of 68577563 is about 8281.1571051394. The cubic root of 68577563 is about 409.3178484247.

The spelling of 68577563 in words is "sixty-eight million, five hundred seventy-seven thousand, five hundred sixty-three".