82572650 has 24 divisors (see below), whose sum is σ = 156108684. Its totient is φ = 32486400.

The previous prime is 82572643. The next prime is 82572661. The reversal of 82572650 is 5627528.

It can be written as a sum of positive squares in 6 ways, for example, as 9247681 + 73324969 = 3041^2 + 8563^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82572650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10487 + ... + 16586.

Almost surely, 2^82572650 is an apocalyptic number.

82572650 is a deficient number, since it is larger than the sum of its proper divisors (73536034).

82572650 is a wasteful number, since it uses less digits than its factorization.

82572650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27146 (or 27141 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 82572650 is about 9086.9494331156. The cubic root of 82572650 is about 435.4571316325.

The spelling of 82572650 in words is "eighty-two million, five hundred seventy-two thousand, six hundred fifty".