82534521 has 8 divisors (see below), whose sum is σ = 110094624. Its totient is φ = 54998720.

The previous prime is 82534489. The next prime is 82534523. The reversal of 82534521 is 12543528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82534521 - 2⁵ = 82534489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82534523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4465 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (13761828).

Almost surely, 2^82534521 is an apocalyptic number.

It is an amenable number.

82534521 is a deficient number, since it is larger than the sum of its proper divisors (27560103).

82534521 is a wasteful number, since it uses less digits than its factorization.

82534521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151.

The product of its digits is 9600, while the sum is 30.

The square root of 82534521 is about 9084.8511820503. The cubic root of 82534521 is about 435.3900953065.

The spelling of 82534521 in words is "eighty-two million, five hundred thirty-four thousand, five hundred twenty-one".