82505530427 has 2 divisors, whose sum is σ = 82505530428. Its totient is φ = 82505530426.

The previous prime is 82505530423. The next prime is 82505530433. The reversal of 82505530427 is 72403550528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82505530427 - 2² = 82505530423 is a prime.

It is not a weakly prime, because it can be changed into another prime (82505530423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41252765213 + 41252765214.

It is an arithmetic number, because the mean of its divisors is an integer number (41252765214).

Almost surely, 2^82505530427 is an apocalyptic number.

82505530427 is a deficient number, since it is larger than the sum of its proper divisors (1).

82505530427 is an equidigital number, since it uses as much as digits as its factorization.

82505530427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 82505530427 in words is "eighty-two billion, five hundred five million, five hundred thirty thousand, four hundred twenty-seven".