68563605 has 32 divisors (see below), whose sum is σ = 121720320. Its totient is φ = 32674880.

The previous prime is 68563549. The next prime is 68563619. The reversal of 68563605 is 50636586.

68563605 = 60² + 61² + ... + 590².

It is not a de Polignac number, because 68563605 - 2⁷ = 68563477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6214 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (3803760).

Almost surely, 2^68563605 is an apocalyptic number.

It is an amenable number.

68563605 is a deficient number, since it is larger than the sum of its proper divisors (53156715).

68563605 is a wasteful number, since it uses less digits than its factorization.

68563605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 68563605 is about 8280.3143056287. The cubic root of 68563605 is about 409.2900762402.

The spelling of 68563605 in words is "sixty-eight million, five hundred sixty-three thousand, six hundred five".