85352815 has 4 divisors (see below), whose sum is σ = 102423384. Its totient is φ = 68282248.

The previous prime is 85352809. The next prime is 85352833. The reversal of 85352815 is 51825358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85352815 - 2¹¹ = 85350767 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 3 ways as a sum of consecutive naturals, for example, 8535277 + ... + 8535286.

It is an arithmetic number, because the mean of its divisors is an integer number (25605846).

Almost surely, 2^85352815 is an apocalyptic number.

85352815 is a deficient number, since it is larger than the sum of its proper divisors (17070569).

85352815 is a wasteful number, since it uses less digits than its factorization.

85352815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17070568.

The product of its digits is 48000, while the sum is 37.

The square root of 85352815 is about 9238.6587229965. The cubic root of 85352815 is about 440.2904676398.

The spelling of 85352815 in words is "eighty-five million, three hundred fifty-two thousand, eight hundred fifteen".