275553 has 12 divisors (see below), whose sum is σ = 421668. Its totient is φ = 172800.

The previous prime is 275549. The next prime is 275573. The reversal of 275553 is 355572.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 154449 = 348^2 + 393^2 .

It is not a de Polignac number, because 275553 - 2² = 275549 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275503) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 748 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (35139).

2²⁷⁵⁵⁵³ is an apocalyptic number.

It is an amenable number.

275553 is a deficient number, since it is larger than the sum of its proper divisors (146115).

275553 is a wasteful number, since it uses less digits than its factorization.

275553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824 (or 1821 counting only the distinct ones).

The product of its digits is 5250, while the sum is 27.

The square root of 275553 is about 524.9314240927. The cubic root of 275553 is about 65.0731326764.

It can be divided in two parts, 275 and 553, that added together give a palindrome (828).

The spelling of 275553 in words is "two hundred seventy-five thousand, five hundred fifty-three".