68065525 has 18 divisors (see below), whose sum is σ = 92775746. Its totient is φ = 49500000.

The previous prime is 68065513. The next prime is 68065537. The reversal of 68065525 is 52556086.

It is an interprime number because it is at equal distance from previous prime (68065513) and next prime (68065537).

It can be written as a sum of positive squares in 3 ways, for example, as 24068836 + 43996689 = 4906^2 + 6633^2 .

It is not a de Polignac number, because 68065525 - 2⁵ = 68065493 is a prime.

It is a Duffinian number.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 8226 + ... + 14275.

Almost surely, 2^68065525 is an apocalyptic number.

It is an amenable number.

68065525 is a deficient number, since it is larger than the sum of its proper divisors (24710221).

68065525 is a wasteful number, since it uses less digits than its factorization.

68065525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22533 (or 22517 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 68065525 is about 8250.1833312963. The cubic root of 68065525 is about 408.2965712658.

The spelling of 68065525 in words is "sixty-eight million, sixty-five thousand, five hundred twenty-five".