80853511 has 2 divisors, whose sum is σ = 80853512. Its totient is φ = 80853510.

The previous prime is 80853503. The next prime is 80853527. The reversal of 80853511 is 11535808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80853511 - 2³ = 80853503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80853571) 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 as a sum of consecutive naturals, namely, 40426755 + 40426756.

It is an arithmetic number, because the mean of its divisors is an integer number (40426756).

Almost surely, 2^80853511 is an apocalyptic number.

80853511 is a deficient number, since it is larger than the sum of its proper divisors (1).

80853511 is an equidigital number, since it uses as much as digits as its factorization.

80853511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 80853511 is about 8991.8580393598. The cubic root of 80853511 is about 432.4138819704.

The spelling of 80853511 in words is "eighty million, eight hundred fifty-three thousand, five hundred eleven".