82535570 has 32 divisors (see below), whose sum is σ = 161103600. Its totient is φ = 30263040.

The previous prime is 82535549. The next prime is 82535573. The reversal of 82535570 is 7553528.

It can be written as a sum of positive squares in 8 ways, for example, as 26450449 + 56085121 = 5143^2 + 7489^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82535570.

It is not an unprimeable number, because it can be changed into a prime (82535573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17240 + ... + 21500.

Almost surely, 2^82535570 is an apocalyptic number.

82535570 is a deficient number, since it is larger than the sum of its proper divisors (78568030).

82535570 is a wasteful number, since it uses less digits than its factorization.

82535570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 82535570 is about 9084.9089153387. The cubic root of 82535570 is about 435.3919398772.

The spelling of 82535570 in words is "eighty-two million, five hundred thirty-five thousand, five hundred seventy".