85215005 has 8 divisors (see below), whose sum is σ = 102456672. Its totient is φ = 68039568.

The previous prime is 85214993. The next prime is 85215007. The reversal of 85215005 is 50051258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85215005 - 2⁸ = 85214749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85215007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13679 + ... + 18908.

It is an arithmetic number, because the mean of its divisors is an integer number (12807084).

Almost surely, 2^85215005 is an apocalyptic number.

It is an amenable number.

85215005 is a deficient number, since it is larger than the sum of its proper divisors (17241667).

85215005 is a wasteful number, since it uses less digits than its factorization.

85215005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33115.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 85215005 is about 9231.1973762887. The cubic root of 85215005 is about 440.0533767890.

The spelling of 85215005 in words is "eighty-five million, two hundred fifteen thousand, five".