68553564 has 24 divisors (see below), whose sum is σ = 165474960. Its totient is φ = 22063104.

The previous prime is 68553557. The next prime is 68553581. The reversal of 68553564 is 46535586.

It is a happy number.

It is a super-2 number, since 2×68553564² = 9399182274204192, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 98149 + ... + 98844.

It is an arithmetic number, because the mean of its divisors is an integer number (6894790).

Almost surely, 2^68553564 is an apocalyptic number.

It is an amenable number.

68553564 is an abundant number, since it is smaller than the sum of its proper divisors (96921396).

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

68553564 is a wasteful number, since it uses less digits than its factorization.

68553564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197029 (or 197027 counting only the distinct ones).

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

The square root of 68553564 is about 8279.7079658645. The cubic root of 68553564 is about 409.2700953661.

The spelling of 68553564 in words is "sixty-eight million, five hundred fifty-three thousand, five hundred sixty-four".