82786025 has 24 divisors (see below), whose sum is σ = 117730560. Its totient is φ = 56568960.

The previous prime is 82786003. The next prime is 82786087. The reversal of 82786025 is 52068728.

It is not a de Polignac number, because 82786025 - 2¹² = 82781929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82786025.

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 23 ways as a sum of consecutive naturals, for example, 63581 + ... + 64869.

It is an arithmetic number, because the mean of its divisors is an integer number (4905440).

Almost surely, 2^82786025 is an apocalyptic number.

It is an amenable number.

82786025 is a deficient number, since it is larger than the sum of its proper divisors (34944535).

82786025 is a wasteful number, since it uses less digits than its factorization.

82786025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1668 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 82786025 is about 9098.6825969478. The cubic root of 82786025 is about 435.8318955367.

The spelling of 82786025 in words is "eighty-two million, seven hundred eighty-six thousand, twenty-five".