82585957 has 2 divisors, whose sum is σ = 82585958. Its totient is φ = 82585956.

The previous prime is 82585933. The next prime is 82585963. The reversal of 82585957 is 75958528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50708641 + 31877316 = 7121^2 + 5646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82585957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82585957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82585967) 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 as a sum of consecutive naturals, namely, 41292978 + 41292979.

It is an arithmetic number, because the mean of its divisors is an integer number (41292979).

Almost surely, 2^82585957 is an apocalyptic number.

It is an amenable number.

82585957 is a deficient number, since it is larger than the sum of its proper divisors (1).

82585957 is an equidigital number, since it uses as much as digits as its factorization.

82585957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008000, while the sum is 49.

The square root of 82585957 is about 9087.6816075389. The cubic root of 82585957 is about 435.4805224155.

The spelling of 82585957 in words is "eighty-two million, five hundred eighty-five thousand, nine hundred fifty-seven".