33725662009 has 8 divisors (see below), whose sum is σ = 36346262792. Its totient is φ = 31108821120.

The previous prime is 33725661971. The next prime is 33725662037. The reversal of 33725662009 is 90026652733.

It can be written as a sum of positive squares in 4 ways, for example, as 3528954025 + 30196707984 = 59405^2 + 173772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-33725662009 is a prime.

It is a super-2 number, since 2×33725662009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33725662039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921324 + ... + 957229.

It is an arithmetic number, because the mean of its divisors is an integer number (4543282849).

Almost surely, 2^33725662009 is an apocalyptic number.

It is an amenable number.

33725662009 is a deficient number, since it is larger than the sum of its proper divisors (2620600783).

33725662009 is a wasteful number, since it uses less digits than its factorization.

33725662009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879947.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 33725662009 in words is "thirty-three billion, seven hundred twenty-five million, six hundred sixty-two thousand, nine".