68222522 has 8 divisors (see below), whose sum is σ = 104011572. Its totient is φ = 33552000.

The previous prime is 68222519. The next prime is 68222543. The reversal of 68222522 is 22522286.

It can be written as a sum of positive squares in 2 ways, for example, as 62742241 + 5480281 = 7921^2 + 2341^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279479 + ... + 279722.

Almost surely, 2^68222522 is an apocalyptic number.

68222522 is a deficient number, since it is larger than the sum of its proper divisors (35789050).

68222522 is a wasteful number, since it uses less digits than its factorization.

68222522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559264.

The product of its digits is 7680, while the sum is 29.

The square root of 68222522 is about 8259.6926092924. The cubic root of 68222522 is about 408.6102499620.

The spelling of 68222522 in words is "sixty-eight million, two hundred twenty-two thousand, five hundred twenty-two".