82537505 has 16 divisors (see below), whose sum is σ = 100813440. Its totient is φ = 64862208.

The previous prime is 82537493. The next prime is 82537517. The reversal of 82537505 is 50573528.

It is an interprime number because it is at equal distance from previous prime (82537493) and next prime (82537517).

It is a cyclic number.

It is not a de Polignac number, because 82537505 - 2⁸ = 82537249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71009 + ... + 72161.

It is an arithmetic number, because the mean of its divisors is an integer number (6300840).

Almost surely, 2^82537505 is an apocalyptic number.

It is an amenable number.

82537505 is a deficient number, since it is larger than the sum of its proper divisors (18275935).

82537505 is a wasteful number, since it uses less digits than its factorization.

82537505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 82537505 is about 9085.0154100034. The cubic root of 82537505 is about 435.3953423569.

The spelling of 82537505 in words is "eighty-two million, five hundred thirty-seven thousand, five hundred five".