68528522 has 8 divisors (see below), whose sum is σ = 103203072. Its totient is φ = 34127500.

The previous prime is 68528503. The next prime is 68528597. The reversal of 68528522 is 22582586.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67754 + ... + 68757.

It is an arithmetic number, because the mean of its divisors is an integer number (12900384).

Almost surely, 2^68528522 is an apocalyptic number.

68528522 is a deficient number, since it is larger than the sum of its proper divisors (34674550).

68528522 is a wasteful number, since it uses less digits than its factorization.

68528522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136764.

The product of its digits is 76800, while the sum is 38.

The square root of 68528522 is about 8278.1955763318. The cubic root of 68528522 is about 409.2202550693.

The spelling of 68528522 in words is "sixty-eight million, five hundred twenty-eight thousand, five hundred twenty-two".