68557424 has 20 divisors (see below), whose sum is σ = 143048136. Its totient is φ = 31641792.

The previous prime is 68557397. The next prime is 68557427. The reversal of 68557424 is 42475586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68557427) 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, 164594 + ... + 165009.

Almost surely, 2^68557424 is an apocalyptic number.

It is an amenable number.

68557424 is an abundant number, since it is smaller than the sum of its proper divisors (74490712).

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

68557424 is a wasteful number, since it uses less digits than its factorization.

68557424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329624 (or 329618 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The square root of 68557424 is about 8279.9410625922. The cubic root of 68557424 is about 409.2777767217.

The spelling of 68557424 in words is "sixty-eight million, five hundred fifty-seven thousand, four hundred twenty-four".