82559951 has 2 divisors, whose sum is σ = 82559952. Its totient is φ = 82559950.

The previous prime is 82559933. The next prime is 82560001. The reversal of 82559951 is 15995528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82559951 - 2⁶ = 82559887 is a prime.

It is a super-2 number, since 2×82559951² = 13632291018244802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82559251) by changing a digit.

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 as a sum of consecutive naturals, namely, 41279975 + 41279976.

It is an arithmetic number, because the mean of its divisors is an integer number (41279976).

Almost surely, 2^82559951 is an apocalyptic number.

82559951 is a deficient number, since it is larger than the sum of its proper divisors (1).

82559951 is an equidigital number, since it uses as much as digits as its factorization.

82559951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 44.

The square root of 82559951 is about 9086.2506568991. The cubic root of 82559951 is about 435.4348072365.

The spelling of 82559951 in words is "eighty-two million, five hundred fifty-nine thousand, nine hundred fifty-one".