68573529 has 12 divisors (see below), whose sum is σ = 104877396. Its totient is φ = 43026432.

The previous prime is 68573513. The next prime is 68573537. The reversal of 68573529 is 92537586.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52533504 + 16040025 = 7248^2 + 4005^2 .

It is not a de Polignac number, because 68573529 - 2⁴ = 68573513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68573509) 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, 223944 + ... + 224249.

It is an arithmetic number, because the mean of its divisors is an integer number (8739783).

Almost surely, 2^68573529 is an apocalyptic number.

It is an amenable number.

68573529 is a deficient number, since it is larger than the sum of its proper divisors (36303867).

68573529 is a wasteful number, since it uses less digits than its factorization.

68573529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448216 (or 448213 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 68573529 is about 8280.9135365610. The cubic root of 68573529 is about 409.3098223760.

The spelling of 68573529 in words is "sixty-eight million, five hundred seventy-three thousand, five hundred twenty-nine".