82531523 has 2 divisors, whose sum is σ = 82531524. Its totient is φ = 82531522.

The previous prime is 82531513. The next prime is 82531529. The reversal of 82531523 is 32513528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82531523 - 2⁴ = 82531507 is a prime.

It is a super-2 number, since 2×82531523² = 13622904577399058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82531529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41265761 + 41265762.

It is an arithmetic number, because the mean of its divisors is an integer number (41265762).

Almost surely, 2^82531523 is an apocalyptic number.

82531523 is a deficient number, since it is larger than the sum of its proper divisors (1).

82531523 is an equidigital number, since it uses as much as digits as its factorization.

82531523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 82531523 is about 9084.6861806008. The cubic root of 82531523 is about 435.3848235111.

The spelling of 82531523 in words is "eighty-two million, five hundred thirty-one thousand, five hundred twenty-three".