85220375 has 8 divisors (see below), whose sum is σ = 106355184. Its totient is φ = 68176200.

The previous prime is 85220363. The next prime is 85220389. The reversal of 85220375 is 57302258.

It is not a de Polignac number, because 85220375 - 2¹² = 85216279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340757 + ... + 341006.

It is an arithmetic number, because the mean of its divisors is an integer number (13294398).

Almost surely, 2^85220375 is an apocalyptic number.

85220375 is a deficient number, since it is larger than the sum of its proper divisors (21134809).

85220375 is an equidigital number, since it uses as much as digits as its factorization.

85220375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681778 (or 681768 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 85220375 is about 9231.4882332157. The cubic root of 85220375 is about 440.0626202198.

The spelling of 85220375 in words is "eighty-five million, two hundred twenty thousand, three hundred seventy-five".