82590531 has 4 divisors (see below), whose sum is σ = 110120712. Its totient is φ = 55060352.

The previous prime is 82590509. The next prime is 82590577. The reversal of 82590531 is 13509528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82590531 - 2⁶ = 82590467 is a prime.

It is a super-2 number, since 2×82590531² = 13642391621723922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82590492 and 82590501.

It is not an unprimeable number, because it can be changed into a prime (82590581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13765086 + ... + 13765091.

It is an arithmetic number, because the mean of its divisors is an integer number (27530178).

Almost surely, 2^82590531 is an apocalyptic number.

82590531 is a deficient number, since it is larger than the sum of its proper divisors (27530181).

82590531 is a wasteful number, since it uses less digits than its factorization.

82590531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27530180.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 82590531 is about 9087.9332633993. The cubic root of 82590531 is about 435.4885619225.

The spelling of 82590531 in words is "eighty-two million, five hundred ninety thousand, five hundred thirty-one".