80133551 has 2 divisors, whose sum is σ = 80133552. Its totient is φ = 80133550.

The previous prime is 80133517. The next prime is 80133649. The reversal of 80133551 is 15533108.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80133551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80133551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80133451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40066775 + 40066776.

It is an arithmetic number, because the mean of its divisors is an integer number (40066776).

Almost surely, 2^80133551 is an apocalyptic number.

80133551 is a deficient number, since it is larger than the sum of its proper divisors (1).

80133551 is an equidigital number, since it uses as much as digits as its factorization.

80133551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 80133551 is about 8951.7345246606. The cubic root of 80133551 is about 431.1265771284.

Adding to 80133551 its reverse (15533108), we get a palindrome (95666659).

The spelling of 80133551 in words is "eighty million, one hundred thirty-three thousand, five hundred fifty-one".