85683251 has 2 divisors, whose sum is σ = 85683252. Its totient is φ = 85683250.

The previous prime is 85683229. The next prime is 85683253. The reversal of 85683251 is 15238658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85683251 - 2²² = 81488947 is a prime.

Together with 85683253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85683253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42841625 + 42841626.

It is an arithmetic number, because the mean of its divisors is an integer number (42841626).

Almost surely, 2^85683251 is an apocalyptic number.

85683251 is a deficient number, since it is larger than the sum of its proper divisors (1).

85683251 is an equidigital number, since it uses as much as digits as its factorization.

85683251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 38.

The square root of 85683251 is about 9256.5247798512. The cubic root of 85683251 is about 440.8579180744.

The spelling of 85683251 in words is "eighty-five million, six hundred eighty-three thousand, two hundred fifty-one".