75805855 has 16 divisors (see below), whose sum is σ = 95709600. Its totient is φ = 57554560.

The previous prime is 75805831. The next prime is 75805867. The reversal of 75805855 is 55850857.

It is not a de Polignac number, because 75805855 - 2⁹ = 75805343 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, 4125 + ... + 12985.

It is an arithmetic number, because the mean of its divisors is an integer number (5981850).

Almost surely, 2^75805855 is an apocalyptic number.

75805855 is a deficient number, since it is larger than the sum of its proper divisors (19903745).

75805855 is a wasteful number, since it uses less digits than its factorization.

75805855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954.

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 75805855 is about 8706.6557873847. The cubic root of 75805855 is about 423.2213649084.

The spelling of 75805855 in words is "seventy-five million, eight hundred five thousand, eight hundred fifty-five".