85225951 has 2 divisors, whose sum is σ = 85225952. Its totient is φ = 85225950.

The previous prime is 85225949. The next prime is 85225979. The reversal of 85225951 is 15952258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85225951 - 2¹ = 85225949 is a prime.

Together with 85225949, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85225951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85225991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42612975 + 42612976.

It is an arithmetic number, because the mean of its divisors is an integer number (42612976).

Almost surely, 2^85225951 is an apocalyptic number.

85225951 is a deficient number, since it is larger than the sum of its proper divisors (1).

85225951 is an equidigital number, since it uses as much as digits as its factorization.

85225951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 37.

The square root of 85225951 is about 9231.7902380849. The cubic root of 85225951 is about 440.0722178293.

The spelling of 85225951 in words is "eighty-five million, two hundred twenty-five thousand, nine hundred fifty-one".