55624424 has 8 divisors (see below), whose sum is σ = 104295810. Its totient is φ = 27812208.

The previous prime is 55624421. The next prime is 55624427. The reversal of 55624424 is 42442655.

It is an interprime number because it is at equal distance from previous prime (55624421) and next prime (55624427).

It can be written as a sum of positive squares in only one way, i.e., 51696100 + 3928324 = 7190^2 + 1982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55624421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3476519 + ... + 3476534.

Almost surely, 2^55624424 is an apocalyptic number.

It is an amenable number.

55624424 is a deficient number, since it is larger than the sum of its proper divisors (48671386).

55624424 is a wasteful number, since it uses less digits than its factorization.

55624424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953059 (or 6953055 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 55624424 is about 7458.1783298604. The cubic root of 55624424 is about 381.7290184570.

The spelling of 55624424 in words is "fifty-five million, six hundred twenty-four thousand, four hundred twenty-four".