80365603 has 2 divisors, whose sum is σ = 80365604. Its totient is φ = 80365602.

The previous prime is 80365589. The next prime is 80365619. The reversal of 80365603 is 30656308.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80365603 - 2⁹ = 80365091 is a prime.

It is a super-3 number, since 3×80365603³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (80365643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40182801 + 40182802.

It is an arithmetic number, because the mean of its divisors is an integer number (40182802).

Almost surely, 2^80365603 is an apocalyptic number.

80365603 is a deficient number, since it is larger than the sum of its proper divisors (1).

80365603 is an equidigital number, since it uses as much as digits as its factorization.

80365603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 80365603 is about 8964.6864418116. The cubic root of 80365603 is about 431.5423304503.

The spelling of 80365603 in words is "eighty million, three hundred sixty-five thousand, six hundred three".