80818250 has 16 divisors (see below), whose sum is σ = 151292232. Its totient is φ = 32327200.

The previous prime is 80818247. The next prime is 80818253. The reversal of 80818250 is 5281808.

It is an interprime number because it is at equal distance from previous prime (80818247) and next prime (80818253).

It can be written as a sum of positive squares in 4 ways, for example, as 10778089 + 70040161 = 3283^2 + 8369^2 .

It is not an unprimeable number, because it can be changed into a prime (80818253) 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, 161387 + ... + 161886.

Almost surely, 2^80818250 is an apocalyptic number.

80818250 is a deficient number, since it is larger than the sum of its proper divisors (70473982).

80818250 is a wasteful number, since it uses less digits than its factorization.

80818250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323290 (or 323280 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 80818250 is about 8989.8971073088. The cubic root of 80818250 is about 432.3510128682.

The spelling of 80818250 in words is "eighty million, eight hundred eighteen thousand, two hundred fifty".