83251601 has 4 divisors (see below), whose sum is σ = 88148772. Its totient is φ = 78354432.

The previous prime is 83251577. The next prime is 83251603. The reversal of 83251601 is 10615238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64320400 + 18931201 = 8020^2 + 4351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83251601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83251603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2448560 + ... + 2448593.

It is an arithmetic number, because the mean of its divisors is an integer number (22037193).

Almost surely, 2^83251601 is an apocalyptic number.

It is an amenable number.

83251601 is a deficient number, since it is larger than the sum of its proper divisors (4897171).

83251601 is a wasteful number, since it uses less digits than its factorization.

83251601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897170.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 83251601 is about 9124.2315292851. The cubic root of 83251601 is about 436.6473861179.

Adding to 83251601 its reverse (10615238), we get a palindrome (93866839).

The spelling of 83251601 in words is "eighty-three million, two hundred fifty-one thousand, six hundred one".