85655546 has 4 divisors (see below), whose sum is σ = 128483322. Its totient is φ = 42827772.

The previous prime is 85655543. The next prime is 85655561. The reversal of 85655546 is 64555658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64555658 = 2 ⋅32277829.

It can be written as a sum of positive squares in only one way, i.e., 84732025 + 923521 = 9205^2 + 961^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85655497 and 85655506.

It is not an unprimeable number, because it can be changed into a prime (85655543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413885 + ... + 21413888.

Almost surely, 2^85655546 is an apocalyptic number.

85655546 is a deficient number, since it is larger than the sum of its proper divisors (42827776).

85655546 is a wasteful number, since it uses less digits than its factorization.

85655546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42827775.

The product of its digits is 720000, while the sum is 44.

The square root of 85655546 is about 9255.0281469048. The cubic root of 85655546 is about 440.8103969812.

The spelling of 85655546 in words is "eighty-five million, six hundred fifty-five thousand, five hundred forty-six".