85227251 has 2 divisors, whose sum is σ = 85227252. Its totient is φ = 85227250.

The previous prime is 85227221. The next prime is 85227253. The reversal of 85227251 is 15272258.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85227251 - 2²² = 81032947 is a prime.

It is a Sophie Germain prime.

Together with 85227253, 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 (85227253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42613625 + 42613626.

It is an arithmetic number, because the mean of its divisors is an integer number (42613626).

Almost surely, 2^85227251 is an apocalyptic number.

85227251 is a deficient number, since it is larger than the sum of its proper divisors (1).

85227251 is an equidigital number, since it uses as much as digits as its factorization.

85227251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 32.

The square root of 85227251 is about 9231.8606466952. The cubic root of 85227251 is about 440.0744553754.

The spelling of 85227251 in words is "eighty-five million, two hundred twenty-seven thousand, two hundred fifty-one".