85515055 has 8 divisors (see below), whose sum is σ = 106156800. Its totient is φ = 66052896.

The previous prime is 85515011. The next prime is 85515061. The reversal of 85515055 is 55051558.

It is a happy number.

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 85515055 - 2¹⁷ = 85383983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85515055.

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, 294735 + ... + 295024.

It is an arithmetic number, because the mean of its divisors is an integer number (13269600).

Almost surely, 2^85515055 is an apocalyptic number.

85515055 is a deficient number, since it is larger than the sum of its proper divisors (20641745).

85515055 is a wasteful number, since it uses less digits than its factorization.

85515055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589793.

The product of its (nonzero) digits is 25000, while the sum is 34.

The square root of 85515055 is about 9247.4350497854. The cubic root of 85515055 is about 440.5692614638.

The spelling of 85515055 in words is "eighty-five million, five hundred fifteen thousand, fifty-five".