68535564 has 12 divisors (see below), whose sum is σ = 159916344. Its totient is φ = 22845184.

The previous prime is 68535563. The next prime is 68535647. The reversal of 68535564 is 46553586.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (68535563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855637 + ... + 2855660.

It is an arithmetic number, because the mean of its divisors is an integer number (13326362).

Almost surely, 2^68535564 is an apocalyptic number.

It is an amenable number.

68535564 is an abundant number, since it is smaller than the sum of its proper divisors (91380780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68535564 is a wasteful number, since it uses less digits than its factorization.

68535564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711304 (or 5711302 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 68535564 is about 8278.6208996426. The cubic root of 68535564 is about 409.2342717650.

The spelling of 68535564 in words is "sixty-eight million, five hundred thirty-five thousand, five hundred sixty-four".