85545775 has 12 divisors (see below), whose sum is σ = 121230832. Its totient is φ = 58659840.

The previous prime is 85545769. The next prime is 85545787. The reversal of 85545775 is 57754558.

It is not a de Polignac number, because 85545775 - 2¹³ = 85537583 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 244242 + ... + 244591.

Almost surely, 2^85545775 is an apocalyptic number.

85545775 is a deficient number, since it is larger than the sum of its proper divisors (35685057).

85545775 is a wasteful number, since it uses less digits than its factorization.

85545775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488850 (or 488845 counting only the distinct ones).

The product of its digits is 980000, while the sum is 46.

The square root of 85545775 is about 9249.0959017625. The cubic root of 85545775 is about 440.6220111126.

It can be divided in two parts, 85545 and 775, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 85545775 in words is "eighty-five million, five hundred forty-five thousand, seven hundred seventy-five".