83213250 has 32 divisors (see below), whose sum is σ = 207702144. Its totient is φ = 22190000.

The previous prime is 83213219. The next prime is 83213257. The reversal of 83213250 is 5231238.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83213250.

It is not an unprimeable number, because it can be changed into a prime (83213257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54726 + ... + 56225.

It is an arithmetic number, because the mean of its divisors is an integer number (6490692).

Almost surely, 2^83213250 is an apocalyptic number.

83213250 is an abundant number, since it is smaller than the sum of its proper divisors (124488894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83213250 is a wasteful number, since it uses less digits than its factorization.

83213250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110971 (or 110961 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 83213250 is about 9122.1296855504. The cubic root of 83213250 is about 436.5803266028.

Adding to 83213250 its reverse (5231238), we get a palindrome (88444488).

The spelling of 83213250 in words is "eighty-three million, two hundred thirteen thousand, two hundred fifty".