55526 has 4 divisors (see below), whose sum is σ = 83292. Its totient is φ = 27762.

The previous prime is 55511. The next prime is 55529. The reversal of 55526 is 62555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62555 = 5 ⋅12511.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55529) by changing a digit.

55526 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13880 + ... + 13883.

It is an arithmetic number, because the mean of its divisors is an integer number (20823).

2⁵⁵⁵²⁶ is an apocalyptic number.

55526 is a deficient number, since it is larger than the sum of its proper divisors (27766).

55526 is a wasteful number, since it uses less digits than its factorization.

55526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27765.

The product of its digits is 1500, while the sum is 23.

The square root of 55526 is about 235.6395552534. The cubic root of 55526 is about 38.1503736851.

The spelling of 55526 in words is "fifty-five thousand, five hundred twenty-six".