80256275305 has 8 divisors (see below), whose sum is σ = 96316482312. Its totient is φ = 64199052288.

The previous prime is 80256275299. The next prime is 80256275353. The reversal of 80256275305 is 50357265208.

It can be written as a sum of positive squares in 4 ways, for example, as 22300046224 + 57956229081 = 149332^2 + 240741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80256275305 - 2¹⁵ = 80256242537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686392 + ... + 794761.

It is an arithmetic number, because the mean of its divisors is an integer number (12039560289).

Almost surely, 2^80256275305 is an apocalyptic number.

It is an amenable number.

80256275305 is a deficient number, since it is larger than the sum of its proper divisors (16060207007).

80256275305 is a wasteful number, since it uses less digits than its factorization.

80256275305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491995.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 80256275305 in words is "eighty billion, two hundred fifty-six million, two hundred seventy-five thousand, three hundred five".