55508 has 6 divisors (see below), whose sum is σ = 97146. Its totient is φ = 27752.

The previous prime is 55501. The next prime is 55511. The reversal of 55508 is 80555.

It is a happy number.

55508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 35344 + 20164 = 188^2 + 142^2 .

It is a super-2 number, since 2×55508² = 6162276128, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55508.

It is not an unprimeable number, because it can be changed into a prime (55501) by changing a digit.

55508 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, 6935 + ... + 6942.

It is an arithmetic number, because the mean of its divisors is an integer number (16191).

2⁵⁵⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

55508 is a deficient number, since it is larger than the sum of its proper divisors (41638).

55508 is a wasteful number, since it uses less digits than its factorization.

55508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13881 (or 13879 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 55508 is about 235.6013582304. The cubic root of 55508 is about 38.1462508060.

The spelling of 55508 in words is "fifty-five thousand, five hundred eight".