80750005 has 32 divisors (see below), whose sum is σ = 114213888. Its totient is φ = 53664000.

The previous prime is 80750003. The next prime is 80750039. The reversal of 80750005 is 50005708.

It is not a de Polignac number, because 80750005 - 2¹ = 80750003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80750003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187140 + ... + 187570.

It is an arithmetic number, because the mean of its divisors is an integer number (3569184).

Almost surely, 2^80750005 is an apocalyptic number.

It is an amenable number.

80750005 is a deficient number, since it is larger than the sum of its proper divisors (33463883).

80750005 is a wasteful number, since it uses less digits than its factorization.

80750005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 80750005 is about 8986.1006560132. The cubic root of 80750005 is about 432.2292825085.

The spelling of 80750005 in words is "eighty million, seven hundred fifty thousand, five".