85199755 has 4 divisors (see below), whose sum is σ = 102239712. Its totient is φ = 68159800.

The previous prime is 85199747. The next prime is 85199761. The reversal of 85199755 is 55799158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55799158 = 2 ⋅27899579.

It is not a de Polignac number, because 85199755 - 2³ = 85199747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85199699 and 85199708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8519971 + ... + 8519980.

It is an arithmetic number, because the mean of its divisors is an integer number (25559928).

Almost surely, 2^85199755 is an apocalyptic number.

85199755 is a deficient number, since it is larger than the sum of its proper divisors (17039957).

85199755 is a wasteful number, since it uses less digits than its factorization.

85199755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17039956.

The product of its digits is 567000, while the sum is 49.

The square root of 85199755 is about 9230.3713359756. The cubic root of 85199755 is about 440.0271247052.

The spelling of 85199755 in words is "eighty-five million, one hundred ninety-nine thousand, seven hundred fifty-five".