11554 has 8 divisors (see below), whose sum is σ = 17820. Its totient is φ = 5616.

The previous prime is 11551. The next prime is 11579. The reversal of 11554 is 45511.

11554 = T₇₄ + T₇₅ + ... + T₇₇.

It is a happy number.

11554 is nontrivially palindromic in base 7.

11554 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 11025 + 529 = 105^2 + 23^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

11554 is an undulating number in base 7.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (11551) 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, 52 + ... + 160.

2¹¹⁵⁵⁴ is an apocalyptic number.

11554 is a deficient number, since it is larger than the sum of its proper divisors (6266).

11554 is a wasteful number, since it uses less digits than its factorization.

11554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164.

The product of its digits is 100, while the sum is 16.

The square root of 11554 is about 107.4895343743. The cubic root of 11554 is about 22.6070617763.

It can be divided in two parts, 115 and 54, that added together give a square (169 = 13²).

The spelling of 11554 in words is "eleven thousand, five hundred fifty-four".