1080802505 has 4 divisors (see below), whose sum is σ = 1296963012. Its totient is φ = 864642000.

The previous prime is 1080802493. The next prime is 1080802519. The reversal of 1080802505 is 5052080801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146216464 + 934586041 = 12092^2 + 30571^2 .

It is not a de Polignac number, because 1080802505 - 2¹⁸ = 1080540361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108080246 + ... + 108080255.

It is an arithmetic number, because the mean of its divisors is an integer number (324240753).

Almost surely, 2^1080802505 is an apocalyptic number.

It is an amenable number.

1080802505 is a deficient number, since it is larger than the sum of its proper divisors (216160507).

1080802505 is an equidigital number, since it uses as much as digits as its factorization.

1080802505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216160506.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 1080802505 is about 32875.5609077625. The cubic root of 1080802505 is about 1026.2396280978.

The spelling of 1080802505 in words is "one billion, eighty million, eight hundred two thousand, five hundred five".