85872252539 has 2 divisors, whose sum is σ = 85872252540. Its totient is φ = 85872252538.

The previous prime is 85872252533. The next prime is 85872252601. The reversal of 85872252539 is 93525227858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85872252539 - 2⁸ = 85872252283 is a prime.

It is a super-2 number, since 2×85872252539² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85872252533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42936126269 + 42936126270.

It is an arithmetic number, because the mean of its divisors is an integer number (42936126270).

Almost surely, 2^85872252539 is an apocalyptic number.

85872252539 is a deficient number, since it is larger than the sum of its proper divisors (1).

85872252539 is an equidigital number, since it uses as much as digits as its factorization.

85872252539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 56.

The spelling of 85872252539 in words is "eighty-five billion, eight hundred seventy-two million, two hundred fifty-two thousand, five hundred thirty-nine".