854551 has 4 divisors (see below), whose sum is σ = 860152. Its totient is φ = 848952.

The previous prime is 854533. The next prime is 854569. The reversal of 854551 is 155458.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (854533) and next prime (854569).

It is a cyclic number.

It is not a de Polignac number, because 854551 - 2⁷ = 854423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (215038).

2⁸⁵⁴⁵⁵¹ is an apocalyptic number.

854551 is a deficient number, since it is larger than the sum of its proper divisors (5601).

854551 is a wasteful number, since it uses less digits than its factorization.

854551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600.

The product of its digits is 4000, while the sum is 28.

The square root of 854551 is about 924.4192771681. The cubic root of 854551 is about 94.8955824109.

The spelling of 854551 in words is "eight hundred fifty-four thousand, five hundred fifty-one".