82531516 has 24 divisors (see below), whose sum is σ = 152324480. Its totient is φ = 39018672.

The previous prime is 82531513. The next prime is 82531523. The reversal of 82531516 is 61513528.

It is a super-2 number, since 2×82531516² = 13622902266516512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82531511) 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, 72931 + ... + 74053.

Almost surely, 2^82531516 is an apocalyptic number.

It is an amenable number.

82531516 is a deficient number, since it is larger than the sum of its proper divisors (69792964).

82531516 is a wasteful number, since it uses less digits than its factorization.

82531516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2111 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 82531516 is about 9084.6857953371. The cubic root of 82531516 is about 435.3848112019.

The spelling of 82531516 in words is "eighty-two million, five hundred thirty-one thousand, five hundred sixteen".