80500523 has 2 divisors, whose sum is σ = 80500524. Its totient is φ = 80500522.

The previous prime is 80500517. The next prime is 80500571. The reversal of 80500523 is 32500508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80500523 - 2⁸ = 80500267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (80500573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40250261 + 40250262.

It is an arithmetic number, because the mean of its divisors is an integer number (40250262).

Almost surely, 2^80500523 is an apocalyptic number.

80500523 is a deficient number, since it is larger than the sum of its proper divisors (1).

80500523 is an equidigital number, since it uses as much as digits as its factorization.

80500523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 80500523 is about 8972.2083680664. The cubic root of 80500523 is about 431.7836905052.

The spelling of 80500523 in words is "eighty million, five hundred thousand, five hundred twenty-three".