83250561 has 8 divisors (see below), whose sum is σ = 114828480. Its totient is φ = 53586512.

The previous prime is 83250551. The next prime is 83250569. The reversal of 83250561 is 16505238.

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

It is a cyclic number.

It is not a de Polignac number, because 83250561 - 2⁵ = 83250529 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (83250569) 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 7 ways as a sum of consecutive naturals, for example, 478365 + ... + 478538.

It is an arithmetic number, because the mean of its divisors is an integer number (14353560).

Almost surely, 2^83250561 is an apocalyptic number.

It is an amenable number.

83250561 is a deficient number, since it is larger than the sum of its proper divisors (31577919).

83250561 is a wasteful number, since it uses less digits than its factorization.

83250561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956935.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 83250561 is about 9124.1745380062. The cubic root of 83250561 is about 436.6455678739.

Adding to 83250561 its reverse (16505238), we get a palindrome (99755799).

The spelling of 83250561 in words is "eighty-three million, two hundred fifty thousand, five hundred sixty-one".