85295281 has 2 divisors, whose sum is σ = 85295282. Its totient is φ = 85295280.

The previous prime is 85295269. The next prime is 85295321. The reversal of 85295281 is 18259258.

It is an a-pointer prime, because the next prime (85295321) can be obtained adding 85295281 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42837025 + 42458256 = 6545^2 + 6516^2 .

It is a cyclic number.

It is not a de Polignac number, because 85295281 - 2²⁵ = 51740849 is a prime.

It is a super-2 number, since 2×85295281² = 14550569921737922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85295381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42647640 + 42647641.

It is an arithmetic number, because the mean of its divisors is an integer number (42647641).

Almost surely, 2^85295281 is an apocalyptic number.

It is an amenable number.

85295281 is a deficient number, since it is larger than the sum of its proper divisors (1).

85295281 is an equidigital number, since it uses as much as digits as its factorization.

85295281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 40.

The square root of 85295281 is about 9235.5444344121. The cubic root of 85295281 is about 440.1915161457.

The spelling of 85295281 in words is "eighty-five million, two hundred ninety-five thousand, two hundred eighty-one".