80530511 has 2 divisors, whose sum is σ = 80530512. Its totient is φ = 80530510.

The previous prime is 80530487. The next prime is 80530577. The reversal of 80530511 is 11503508.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80530511 is a prime.

It is a super-2 number, since 2×80530511² = 12970326403842242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80530111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40265255 + 40265256.

It is an arithmetic number, because the mean of its divisors is an integer number (40265256).

Almost surely, 2^80530511 is an apocalyptic number.

80530511 is a deficient number, since it is larger than the sum of its proper divisors (1).

80530511 is an equidigital number, since it uses as much as digits as its factorization.

80530511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 80530511 is about 8973.8793729357. The cubic root of 80530511 is about 431.8372997711.

The spelling of 80530511 in words is "eighty million, five hundred thirty thousand, five hundred eleven".