68913525 has 24 divisors (see below), whose sum is σ = 114194080. Its totient is φ = 36671040.

The previous prime is 68913521. The next prime is 68913547. The reversal of 68913525 is 52531986.

It is not a de Polignac number, because 68913525 - 2² = 68913521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68913521) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 47511 + ... + 48939.

Almost surely, 2^68913525 is an apocalyptic number.

It is an amenable number.

68913525 is a deficient number, since it is larger than the sum of its proper divisors (45280555).

68913525 is a wasteful number, since it uses less digits than its factorization.

68913525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2080 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 68913525 is about 8301.4170477094. The cubic root of 68913525 is about 409.9851769378.

The spelling of 68913525 in words is "sixty-eight million, nine hundred thirteen thousand, five hundred twenty-five".