855563254 has 32 divisors (see below), whose sum is σ = 1581814080. Its totient is φ = 337969152.

The previous prime is 855563243. The next prime is 855563273. The reversal of 855563254 is 452365558.

It is a self number, because there is not a number n which added to its sum of digits gives 855563254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136902 + ... + 143014.

It is an arithmetic number, because the mean of its divisors is an integer number (49431690).

Almost surely, 2^855563254 is an apocalyptic number.

855563254 is a deficient number, since it is larger than the sum of its proper divisors (726250826).

855563254 is a wasteful number, since it uses less digits than its factorization.

855563254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904.

The product of its digits is 720000, while the sum is 43.

The square root of 855563254 is about 29250.0128888860. The cubic root of 855563254 is about 949.3303698420.

The spelling of 855563254 in words is "eight hundred fifty-five million, five hundred sixty-three thousand, two hundred fifty-four".