855550394 has 12 divisors (see below), whose sum is σ = 1290876846. Its totient is φ = 425272752.

The previous prime is 855550393. The next prime is 855550417. The reversal of 855550394 is 493055558.

It can be written as a sum of positive squares in 3 ways, for example, as 792141025 + 63409369 = 28145^2 + 7963^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (855550393) 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 in 5 ways as a sum of consecutive naturals, for example, 52712 + ... + 67004.

Almost surely, 2^855550394 is an apocalyptic number.

855550394 is a deficient number, since it is larger than the sum of its proper divisors (435326452).

855550394 is a wasteful number, since it uses less digits than its factorization.

855550394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641 (or 14468 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 44.

The square root of 855550394 is about 29249.7930590970. The cubic root of 855550394 is about 949.3256133460.

The spelling of 855550394 in words is "eight hundred fifty-five million, five hundred fifty thousand, three hundred ninety-four".