855500049 has 10 divisors (see below), whose sum is σ = 1277969330. Its totient is φ = 570333312.

The previous prime is 855500047. The next prime is 855500053. The reversal of 855500049 is 940005558.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 611671824 + 243828225 = 24732^2 + 15615^2 .

It is not a de Polignac number, because 855500049 - 2¹ = 855500047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 855499986 and 855500022.

It is not an unprimeable number, because it can be changed into a prime (855500047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5280784 + ... + 5280945.

It is an arithmetic number, because the mean of its divisors is an integer number (127796933).

Almost surely, 2^855500049 is an apocalyptic number.

It is an amenable number.

855500049 is a deficient number, since it is larger than the sum of its proper divisors (422469281).

855500049 is a wasteful number, since it uses less digits than its factorization.

855500049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561741 (or 10561732 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 855500049 is about 29248.9324420568. The cubic root of 855500049 is about 949.3069919081.

The spelling of 855500049 in words is "eight hundred fifty-five million, five hundred thousand, forty-nine".