85452215 has 16 divisors (see below), whose sum is σ = 108241920. Its totient is φ = 64582560.

The previous prime is 85452187. The next prime is 85452229. The reversal of 85452215 is 51225458.

It is not a de Polignac number, because 85452215 - 2¹⁸ = 85190071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39902 + ... + 41988.

It is an arithmetic number, because the mean of its divisors is an integer number (6765120).

Almost surely, 2^85452215 is an apocalyptic number.

85452215 is a deficient number, since it is larger than the sum of its proper divisors (22789705).

85452215 is a wasteful number, since it uses less digits than its factorization.

85452215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542.

The product of its digits is 16000, while the sum is 32.

The square root of 85452215 is about 9244.0367264524. The cubic root of 85452215 is about 440.4613188463.

The spelling of 85452215 in words is "eighty-five million, four hundred fifty-two thousand, two hundred fifteen".