55224636 has 24 divisors (see below), whose sum is σ = 136437840. Its totient is φ = 17325312.

The previous prime is 55224629. The next prime is 55224643. The reversal of 55224636 is 63642255.

55224636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55224629) and next prime (55224643).

It is a junction number, because it is equal to n+sod(n) for n = 55224597 and 55224606.

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 7 ways as a sum of consecutive naturals, for example, 135151 + ... + 135558.

It is an arithmetic number, because the mean of its divisors is an integer number (5684910).

Almost surely, 2^55224636 is an apocalyptic number.

It is an amenable number.

55224636 is an abundant number, since it is smaller than the sum of its proper divisors (81213204).

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

55224636 is a wasteful number, since it uses less digits than its factorization.

55224636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270733 (or 270731 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 55224636 is about 7431.3280105241. The cubic root of 55224636 is about 380.8122882689.

The spelling of 55224636 in words is "fifty-five million, two hundred twenty-four thousand, six hundred thirty-six".