85247655 has 16 divisors (see below), whose sum is σ = 137217024. Its totient is φ = 45191840.

The previous prime is 85247647. The next prime is 85247677. The reversal of 85247655 is 55674258.

It is not a de Polignac number, because 85247655 - 2³ = 85247647 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14511 + ... + 19520.

It is an arithmetic number, because the mean of its divisors is an integer number (8576064).

Almost surely, 2^85247655 is an apocalyptic number.

85247655 is a deficient number, since it is larger than the sum of its proper divisors (51969369).

85247655 is a wasteful number, since it uses less digits than its factorization.

85247655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34206.

The product of its digits is 336000, while the sum is 42.

The square root of 85247655 is about 9232.9656665667. The cubic root of 85247655 is about 440.1095715407.

The spelling of 85247655 in words is "eighty-five million, two hundred forty-seven thousand, six hundred fifty-five".