67331525 has 6 divisors (see below), whose sum is σ = 83491122. Its totient is φ = 53865200.

The previous prime is 67331521. The next prime is 67331581. The reversal of 67331525 is 52513376.

It can be written as a sum of positive squares in 3 ways, for example, as 7392961 + 59938564 = 2719^2 + 7742^2 .

It is not a de Polignac number, because 67331525 - 2² = 67331521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67331491 and 67331500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67331521) 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, 1346606 + ... + 1346655.

It is an arithmetic number, because the mean of its divisors is an integer number (13915187).

Almost surely, 2^67331525 is an apocalyptic number.

It is an amenable number.

67331525 is a deficient number, since it is larger than the sum of its proper divisors (16159597).

67331525 is a wasteful number, since it uses less digits than its factorization.

67331525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693271 (or 2693266 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 67331525 is about 8205.5788948739. The cubic root of 67331525 is about 406.8236110016.

The spelling of 67331525 in words is "sixty-seven million, three hundred thirty-one thousand, five hundred twenty-five".