80563157 has 2 divisors, whose sum is σ = 80563158. Its totient is φ = 80563156.

The previous prime is 80563139. The next prime is 80563169. The reversal of 80563157 is 75136508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78605956 + 1957201 = 8866^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 80563157 - 2¹⁶ = 80497621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80563117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40281578 + 40281579.

It is an arithmetic number, because the mean of its divisors is an integer number (40281579).

Almost surely, 2^80563157 is an apocalyptic number.

It is an amenable number.

80563157 is a deficient number, since it is larger than the sum of its proper divisors (1).

80563157 is an equidigital number, since it uses as much as digits as its factorization.

80563157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 80563157 is about 8975.6981344072. The cubic root of 80563157 is about 431.8956455902.

The spelling of 80563157 in words is "eighty million, five hundred sixty-three thousand, one hundred fifty-seven".