82551739 has 2 divisors, whose sum is σ = 82551740. Its totient is φ = 82551738.

The previous prime is 82551709. The next prime is 82551769. The reversal of 82551739 is 93715528.

It is a balanced prime because it is at equal distance from previous prime (82551709) and next prime (82551769).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82551739 is a prime.

It is a super-2 number, since 2×82551739² = 13629579223848242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82551709) 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, 41275869 + 41275870.

It is an arithmetic number, because the mean of its divisors is an integer number (41275870).

Almost surely, 2^82551739 is an apocalyptic number.

82551739 is a deficient number, since it is larger than the sum of its proper divisors (1).

82551739 is an equidigital number, since it uses as much as digits as its factorization.

82551739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 82551739 is about 9085.7987540997. The cubic root of 82551739 is about 435.4203696100.

The spelling of 82551739 in words is "eighty-two million, five hundred fifty-one thousand, seven hundred thirty-nine".