80018250 has 128 divisors (see below), whose sum is σ = 223292160. Its totient is φ = 18950400.

The previous prime is 80018233. The next prime is 80018251. The reversal of 80018250 is 5281008.

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 80018250.

It is not an unprimeable number, because it can be changed into a prime (80018251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 282609 + ... + 282891.

It is an arithmetic number, because the mean of its divisors is an integer number (1744470).

Almost surely, 2^80018250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80018250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111646080).

80018250 is an abundant number, since it is smaller than the sum of its proper divisors (143273910).

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

80018250 is a wasteful number, since it uses less digits than its factorization.

80018250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 80018250 is about 8945.2920578369. The cubic root of 80018250 is about 430.9197008761.

Adding to 80018250 its reverse (5281008), we get a palindrome (85299258).

The spelling of 80018250 in words is "eighty million, eighteen thousand, two hundred fifty".