80808011 has 4 divisors (see below), whose sum is σ = 81946224. Its totient is φ = 79669800.

The previous prime is 80808001. The next prime is 80808017. The reversal of 80808011 is 11080808.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80808011 is a prime.

It is a super-2 number, since 2×80808011² = 13059869283552242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80808017) 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, 569000 + ... + 569141.

It is an arithmetic number, because the mean of its divisors is an integer number (20486556).

Almost surely, 2^80808011 is an apocalyptic number.

80808011 is a deficient number, since it is larger than the sum of its proper divisors (1138213).

80808011 is a wasteful number, since it uses less digits than its factorization.

80808011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138212.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 80808011 is about 8989.3276166797. The cubic root of 80808011 is about 432.3327536715.

Adding to 80808011 its reverse (11080808), we get a palindrome (91888819).

The spelling of 80808011 in words is "eighty million, eight hundred eight thousand, eleven".