80855499 has 4 divisors (see below), whose sum is σ = 107807336. Its totient is φ = 53903664.

The previous prime is 80855497. The next prime is 80855527. The reversal of 80855499 is 99455808.

It is a happy number.

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

It is not a de Polignac number, because 80855499 - 2¹ = 80855497 is a prime.

It is a super-2 number, since 2×80855499² = 13075223437078002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80855497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13475914 + ... + 13475919.

It is an arithmetic number, because the mean of its divisors is an integer number (26951834).

Almost surely, 2^80855499 is an apocalyptic number.

80855499 is a deficient number, since it is larger than the sum of its proper divisors (26951837).

80855499 is a wasteful number, since it uses less digits than its factorization.

80855499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26951836.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 80855499 is about 8991.9685831302. The cubic root of 80855499 is about 432.4174259589.

The spelling of 80855499 in words is "eighty million, eight hundred fifty-five thousand, four hundred ninety-nine".