68280522 has 8 divisors (see below), whose sum is σ = 136561056. Its totient is φ = 22760172.

The previous prime is 68280521. The next prime is 68280557. The reversal of 68280522 is 22508286.

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

68280522 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68280521) 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, 5690038 + ... + 5690049.

It is an arithmetic number, because the mean of its divisors is an integer number (17070132).

Almost surely, 2^68280522 is an apocalyptic number.

68280522 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.

68280522 is a wasteful number, since it uses less digits than its factorization.

68280522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380092.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 68280522 is about 8263.2028899211. The cubic root of 68280522 is about 408.7260117411.

The spelling of 68280522 in words is "sixty-eight million, two hundred eighty thousand, five hundred twenty-two".