85501259 has 2 divisors, whose sum is σ = 85501260. Its totient is φ = 85501258.

The previous prime is 85501249. The next prime is 85501301. The reversal of 85501259 is 95210558.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85501259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85501219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42750629 + 42750630.

It is an arithmetic number, because the mean of its divisors is an integer number (42750630).

Almost surely, 2^85501259 is an apocalyptic number.

85501259 is a deficient number, since it is larger than the sum of its proper divisors (1).

85501259 is an equidigital number, since it uses as much as digits as its factorization.

85501259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 85501259 is about 9246.6890831259. The cubic root of 85501259 is about 440.5455680903.

The spelling of 85501259 in words is "eighty-five million, five hundred one thousand, two hundred fifty-nine".