68528275 has 24 divisors (see below), whose sum is σ = 90422784. Its totient is φ = 51340800.

The previous prime is 68528263. The next prime is 68528333. The reversal of 68528275 is 57282586.

It is not a de Polignac number, because 68528275 - 2⁷ = 68528147 is a prime.

It is a super-2 number, since 2×68528275² = 9392248948951250, which contains 22 as substring.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 162565 + ... + 162985.

It is an arithmetic number, because the mean of its divisors is an integer number (3767616).

Almost surely, 2^68528275 is an apocalyptic number.

68528275 is a deficient number, since it is larger than the sum of its proper divisors (21894509).

68528275 is a wasteful number, since it uses less digits than its factorization.

68528275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 826 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 68528275 is about 8278.1806576083. The cubic root of 68528275 is about 409.2197634126.

The spelling of 68528275 in words is "sixty-eight million, five hundred twenty-eight thousand, two hundred seventy-five".