85219456 has 32 divisors (see below), whose sum is σ = 194028480. Its totient is φ = 36522240.

The previous prime is 85219451. The next prime is 85219471. The reversal of 85219456 is 65491258.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (85219451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46660 + ... + 48451.

It is an arithmetic number, because the mean of its divisors is an integer number (6063390).

Almost surely, 2^85219456 is an apocalyptic number.

It is an amenable number.

85219456 is an abundant number, since it is smaller than the sum of its proper divisors (108809024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85219456 is an equidigital number, since it uses as much as digits as its factorization.

85219456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95132 (or 95120 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 85219456 is about 9231.4384577919. The cubic root of 85219456 is about 440.0610383641.

The spelling of 85219456 in words is "eighty-five million, two hundred nineteen thousand, four hundred fifty-six".