80542051 has 2 divisors, whose sum is σ = 80542052. Its totient is φ = 80542050.

The previous prime is 80542043. The next prime is 80542109. The reversal of 80542051 is 15024508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80542051 - 2³ = 80542043 is a prime.

It is not a weakly prime, because it can be changed into another prime (80542031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40271025 + 40271026.

It is an arithmetic number, because the mean of its divisors is an integer number (40271026).

Almost surely, 2^80542051 is an apocalyptic number.

80542051 is a deficient number, since it is larger than the sum of its proper divisors (1).

80542051 is an equidigital number, since it uses as much as digits as its factorization.

80542051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 80542051 is about 8974.5223271214. The cubic root of 80542051 is about 431.8579261745.

Adding to 80542051 its reverse (15024508), we get a palindrome (95566559).

The spelling of 80542051 in words is "eighty million, five hundred forty-two thousand, fifty-one".