80755199 has 16 divisors (see below), whose sum is σ = 96344640. Its totient is φ = 66243840.

The previous prime is 80755163. The next prime is 80755211. The reversal of 80755199 is 99155708.

80755199 = 50² + 51² + ... + 623².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80755199 - 2⁸ = 80754943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80755999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12557 + ... + 17865.

It is an arithmetic number, because the mean of its divisors is an integer number (6021540).

Almost surely, 2^80755199 is an apocalyptic number.

80755199 is a deficient number, since it is larger than the sum of its proper divisors (15589441).

80755199 is a wasteful number, since it uses less digits than its factorization.

80755199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 80755199 is about 8986.3896532478. The cubic root of 80755199 is about 432.2385495906.

The spelling of 80755199 in words is "eighty million, seven hundred fifty-five thousand, one hundred ninety-nine".