83250581 has 8 divisors (see below), whose sum is σ = 88228440. Its totient is φ = 78281728.

The previous prime is 83250569. The next prime is 83250589. The reversal of 83250581 is 18505238.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26112100 + 57138481 = 5110^2 + 7559^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83250581 is a prime.

It is a super-2 number, since 2×83250581² = 13861318473675122, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83250589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30605 + ... + 33213.

It is an arithmetic number, because the mean of its divisors is an integer number (11028555).

Almost surely, 2^83250581 is an apocalyptic number.

It is an amenable number.

83250581 is a deficient number, since it is larger than the sum of its proper divisors (4977859).

83250581 is a wasteful number, since it uses less digits than its factorization.

83250581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 83250581 is about 9124.1756339957. The cubic root of 83250581 is about 436.6456028402.

The spelling of 83250581 in words is "eighty-three million, two hundred fifty thousand, five hundred eighty-one".