275851 has 4 divisors (see below), whose sum is σ = 277312. Its totient is φ = 274392.

The previous prime is 275837. The next prime is 275881. The reversal of 275851 is 158572.

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 275851 - 2⁹ = 275339 is a prime.

It is an Ulam number.

It is a Duffinian number.

275851 is a lucky number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (275881) 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, 396 + ... + 841.

It is an arithmetic number, because the mean of its divisors is an integer number (69328).

2²⁷⁵⁸⁵¹ is an apocalyptic number.

275851 is a deficient number, since it is larger than the sum of its proper divisors (1461).

275851 is a wasteful number, since it uses less digits than its factorization.

275851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its digits is 2800, while the sum is 28.

The square root of 275851 is about 525.2151939919. The cubic root of 275851 is about 65.0965822575.

It can be divided in two parts, 2758 and 51, that added together give a square (2809 = 53²).

The spelling of 275851 in words is "two hundred seventy-five thousand, eight hundred fifty-one".