82535531 has 4 divisors (see below), whose sum is σ = 88884432. Its totient is φ = 76186632.

The previous prime is 82535521. The next prime is 82535549. The reversal of 82535531 is 13553528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82535531 is a prime.

It is a super-2 number, since 2×82535531² = 13624227754903922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82535521) 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, 3174431 + ... + 3174456.

It is an arithmetic number, because the mean of its divisors is an integer number (22221108).

Almost surely, 2^82535531 is an apocalyptic number.

82535531 is a deficient number, since it is larger than the sum of its proper divisors (6348901).

82535531 is a wasteful number, since it uses less digits than its factorization.

82535531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6348900.

The product of its digits is 18000, while the sum is 32.

The square root of 82535531 is about 9084.9067689217. The cubic root of 82535531 is about 435.3918712995.

The spelling of 82535531 in words is "eighty-two million, five hundred thirty-five thousand, five hundred thirty-one".