55487424 has 28 divisors (see below), whose sum is σ = 146810984. Its totient is φ = 18495744.

The previous prime is 55487417. The next prime is 55487441. The reversal of 55487424 is 42478455.

55487424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144307 + ... + 144690.

Almost surely, 2^55487424 is an apocalyptic number.

It is an amenable number.

55487424 is an abundant number, since it is smaller than the sum of its proper divisors (91323560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55487424 is a wasteful number, since it uses less digits than its factorization.

55487424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289012 (or 289002 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 55487424 is about 7448.9881192012. The cubic root of 55487424 is about 381.4153680530.

It can be divided in two parts, 554 and 87424, that added together give a palindrome (87978).

The spelling of 55487424 in words is "fifty-five million, four hundred eighty-seven thousand, four hundred twenty-four".