82102563 has 6 divisors (see below), whose sum is σ = 118592604. Its totient is φ = 54735036.

The previous prime is 82102549. The next prime is 82102583. The reversal of 82102563 is 36520128.

It is not a de Polignac number, because 82102563 - 2¹³ = 82094371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82102543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4561245 + ... + 4561262.

It is an arithmetic number, because the mean of its divisors is an integer number (19765434).

Almost surely, 2^82102563 is an apocalyptic number.

82102563 is a deficient number, since it is larger than the sum of its proper divisors (36490041).

82102563 is a wasteful number, since it uses less digits than its factorization.

82102563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122513 (or 9122510 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 82102563 is about 9061.0464627437. The cubic root of 82102563 is about 434.6292044345.

The spelling of 82102563 in words is "eighty-two million, one hundred two thousand, five hundred sixty-three".