80505075 has 24 divisors (see below), whose sum is σ = 152117248. Its totient is φ = 36802080.

The previous prime is 80505049. The next prime is 80505077. The reversal of 80505075 is 57050508.

It is a happy number.

It is not a de Polignac number, because 80505075 - 2⁶ = 80505011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80505077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76147 + ... + 77196.

Almost surely, 2^80505075 is an apocalyptic number.

80505075 is a deficient number, since it is larger than the sum of its proper divisors (71612173).

80505075 is a wasteful number, since it uses less digits than its factorization.

80505075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153363 (or 153358 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 80505075 is about 8972.4620366987. The cubic root of 80505075 is about 431.7918289298.

The spelling of 80505075 in words is "eighty million, five hundred five thousand, seventy-five".