80256831 has 4 divisors (see below), whose sum is σ = 107009112. Its totient is φ = 53504552.

The previous prime is 80256829. The next prime is 80256851. The reversal of 80256831 is 13865208.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80256831 - 2¹ = 80256829 is a prime.

It is a super-2 number, since 2×80256831² = 12882317844325122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80256792 and 80256801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80256851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13376136 + ... + 13376141.

It is an arithmetic number, because the mean of its divisors is an integer number (26752278).

Almost surely, 2^80256831 is an apocalyptic number.

80256831 is a deficient number, since it is larger than the sum of its proper divisors (26752281).

80256831 is a wasteful number, since it uses less digits than its factorization.

80256831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26752280.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 80256831 is about 8958.6176947116. The cubic root of 80256831 is about 431.3475501229.

The spelling of 80256831 in words is "eighty million, two hundred fifty-six thousand, eight hundred thirty-one".