67838525 has 6 divisors (see below), whose sum is σ = 84119802. Its totient is φ = 54270800.

The previous prime is 67838521. The next prime is 67838549. The reversal of 67838525 is 52583876.

It can be written as a sum of positive squares in 3 ways, for example, as 21883684 + 45954841 = 4678^2 + 6779^2 .

It is not a de Polignac number, because 67838525 - 2² = 67838521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67838521) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1356746 + ... + 1356795.

It is an arithmetic number, because the mean of its divisors is an integer number (14019967).

Almost surely, 2^67838525 is an apocalyptic number.

It is an amenable number.

67838525 is a deficient number, since it is larger than the sum of its proper divisors (16281277).

67838525 is a wasteful number, since it uses less digits than its factorization.

67838525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713551 (or 2713546 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 67838525 is about 8236.4145718875. The cubic root of 67838525 is about 407.8421731123.

The spelling of 67838525 in words is "sixty-seven million, eight hundred thirty-eight thousand, five hundred twenty-five".