10555 has 4 divisors (see below), whose sum is σ = 12672. Its totient is φ = 8440.

The previous prime is 10531. The next prime is 10559. The reversal of 10555 is 55501.

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

It is not a de Polignac number, because 10555 - 2⁷ = 10427 is a prime.

It is a super-2 number, since 2×10555² = 222816050, which contains 22 as substring.

It is a Duffinian number.

10555 is a modest number, since divided by 555 gives 10 as remainder.

10555 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (10559) 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, 1051 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (3168).

2¹⁰⁵⁵⁵ is an apocalyptic number.

10555 is a deficient number, since it is larger than the sum of its proper divisors (2117).

10555 is an equidigital number, since it uses as much as digits as its factorization.

10555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 10555 is about 102.7375296569. The cubic root of 10555 is about 21.9357630327.

It can be divided in two parts, 105 and 55, that multiplied together give a palindrome (5775).

The spelling of 10555 in words is "ten thousand, five hundred fifty-five".