80255779 has 4 divisors (see below), whose sum is σ = 80274040. Its totient is φ = 80237520.

The previous prime is 80255741. The next prime is 80255783. The reversal of 80255779 is 97755208.

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 80255779 - 2¹¹ = 80253731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80255729) 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, 1924 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (20068510).

Almost surely, 2^80255779 is an apocalyptic number.

80255779 is a deficient number, since it is larger than the sum of its proper divisors (18261).

80255779 is a wasteful number, since it uses less digits than its factorization.

80255779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18260.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 80255779 is about 8958.5589801039. The cubic root of 80255779 is about 431.3456654252.

The spelling of 80255779 in words is "eighty million, two hundred fifty-five thousand, seven hundred seventy-nine".