82530491 has 8 divisors (see below), whose sum is σ = 86177520. Its totient is φ = 78936928.

The previous prime is 82530479. The next prime is 82530517. The reversal of 82530491 is 19403528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82530491 is a prime.

It is a super-2 number, since 2×82530491² = 13622563889402162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82530421) 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, 10196 + ... + 16401.

It is an arithmetic number, because the mean of its divisors is an integer number (10772190).

Almost surely, 2^82530491 is an apocalyptic number.

82530491 is a deficient number, since it is larger than the sum of its proper divisors (3647029).

82530491 is a wasteful number, since it uses less digits than its factorization.

82530491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26733.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 82530491 is about 9084.6293815433. The cubic root of 82530491 is about 435.3830087742.

The spelling of 82530491 in words is "eighty-two million, five hundred thirty thousand, four hundred ninety-one".