875551 has 4 divisors (see below), whose sum is σ = 927072. Its totient is φ = 824032.

The previous prime is 875543. The next prime is 875579. The reversal of 875551 is 155578.

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

It is a cyclic number.

It is not a de Polignac number, because 875551 - 2³ = 875543 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875521) 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, 25735 + ... + 25768.

It is an arithmetic number, because the mean of its divisors is an integer number (231768).

2⁸⁷⁵⁵⁵¹ is an apocalyptic number.

875551 is a deficient number, since it is larger than the sum of its proper divisors (51521).

875551 is a wasteful number, since it uses less digits than its factorization.

875551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51520.

The product of its digits is 7000, while the sum is 31.

The square root of 875551 is about 935.7088222305. The cubic root of 875551 is about 95.6666315941. Note that the first 4 decimals are identical.

The spelling of 875551 in words is "eight hundred seventy-five thousand, five hundred fifty-one".