82012563 has 6 divisors (see below), whose sum is σ = 118462604. Its totient is φ = 54675036.

The previous prime is 82012559. The next prime is 82012583. The reversal of 82012563 is 36521028.

It is not a de Polignac number, because 82012563 - 2² = 82012559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82012523) 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, 4556245 + ... + 4556262.

Almost surely, 2^82012563 is an apocalyptic number.

82012563 is a deficient number, since it is larger than the sum of its proper divisors (36450041).

82012563 is a wasteful number, since it uses less digits than its factorization.

82012563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112513 (or 9112510 counting only the distinct ones).

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

The square root of 82012563 is about 9056.0787872014. The cubic root of 82012563 is about 434.4703343223.

The spelling of 82012563 in words is "eighty-two million, twelve thousand, five hundred sixty-three".