68557422 has 8 divisors (see below), whose sum is σ = 137114856. Its totient is φ = 22852472.

The previous prime is 68557397. The next prime is 68557427. The reversal of 68557422 is 22475586.

It is a sphenic number, since it is the product of 3 distinct primes.

68557422 is an admirable number.

It is a super-2 number, since 2×68557422² = 9400240222572168, which contains 22 as substring.

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, 5713113 + ... + 5713124.

It is an arithmetic number, because the mean of its divisors is an integer number (17139357).

Almost surely, 2^68557422 is an apocalyptic number.

68557422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68557422 is a wasteful number, since it uses less digits than its factorization.

68557422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426242.

The product of its digits is 134400, while the sum is 39.

The square root of 68557422 is about 8279.9409418184. The cubic root of 68557422 is about 409.2777727418.

The spelling of 68557422 in words is "sixty-eight million, five hundred fifty-seven thousand, four hundred twenty-two".