68683525 has 12 divisors (see below), whose sum is σ = 86127300. Its totient is φ = 54327680.

The previous prime is 68683523. The next prime is 68683529. The reversal of 68683525 is 52538686.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21362884 + 47320641 = 4622^2 + 6879^2 .

It is not a de Polignac number, because 68683525 - 2¹ = 68683523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68683523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13210 + ... + 17659.

It is an arithmetic number, because the mean of its divisors is an integer number (7177275).

Almost surely, 2^68683525 is an apocalyptic number.

It is an amenable number.

68683525 is a deficient number, since it is larger than the sum of its proper divisors (17443775).

68683525 is a wasteful number, since it uses less digits than its factorization.

68683525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30968 (or 30963 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 68683525 is about 8287.5524131073. The cubic root of 68683525 is about 409.5285578581.

The spelling of 68683525 in words is "sixty-eight million, six hundred eighty-three thousand, five hundred twenty-five".