855554 has 16 divisors (see below), whose sum is σ = 1531008. Its totient is φ = 350592.

The previous prime is 855527. The next prime is 855581. The reversal of 855554 is 455558.

It is an interprime number because it is at equal distance from previous prime (855527) and next prime (855581).

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 855554.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (95688).

2⁸⁵⁵⁵⁵⁴ is an apocalyptic number.

855554 is a deficient number, since it is larger than the sum of its proper divisors (675454).

855554 is a wasteful number, since it uses less digits than its factorization.

855554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689.

The product of its digits is 20000, while the sum is 32.

The square root of 855554 is about 924.9616208254. The cubic root of 855554 is about 94.9326947093.

The spelling of 855554 in words is "eight hundred fifty-five thousand, five hundred fifty-four".