80905250 has 32 divisors (see below), whose sum is σ = 152895600. Its totient is φ = 32054400.

The previous prime is 80905219. The next prime is 80905267. The reversal of 80905250 is 5250908.

It can be written as a sum of positive squares in 8 ways, for example, as 426409 + 80478841 = 653^2 + 8971^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25766 + ... + 28734.

Almost surely, 2^80905250 is an apocalyptic number.

80905250 is a deficient number, since it is larger than the sum of its proper divisors (71990350).

80905250 is a wasteful number, since it uses less digits than its factorization.

80905250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 80905250 is about 8994.7345708475. The cubic root of 80905250 is about 432.5060976787.

The spelling of 80905250 in words is "eighty million, nine hundred five thousand, two hundred fifty".