82610563 has 4 divisors (see below), whose sum is σ = 94412080. Its totient is φ = 70809048.

The previous prime is 82610551. The next prime is 82610569. The reversal of 82610563 is 36501628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82610563 - 2⁹ = 82610051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82610569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5900748 + ... + 5900761.

It is an arithmetic number, because the mean of its divisors is an integer number (23603020).

Almost surely, 2^82610563 is an apocalyptic number.

82610563 is a deficient number, since it is larger than the sum of its proper divisors (11801517).

82610563 is a wasteful number, since it uses less digits than its factorization.

82610563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11801516.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 82610563 is about 9089.0353173480. The cubic root of 82610563 is about 435.5237677407.

The spelling of 82610563 in words is "eighty-two million, six hundred ten thousand, five hundred sixty-three".