82505107 has 2 divisors, whose sum is σ = 82505108. Its totient is φ = 82505106.

The previous prime is 82505081. The next prime is 82505173. The reversal of 82505107 is 70150528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82505107 - 2¹⁹ = 81980819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82505177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41252553 + 41252554.

It is an arithmetic number, because the mean of its divisors is an integer number (41252554).

Almost surely, 2^82505107 is an apocalyptic number.

82505107 is a deficient number, since it is larger than the sum of its proper divisors (1).

82505107 is an equidigital number, since it uses as much as digits as its factorization.

82505107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 82505107 is about 9083.2321890393. The cubic root of 82505107 is about 435.3383671094.

The spelling of 82505107 in words is "eighty-two million, five hundred five thousand, one hundred seven".