55155224 has 16 divisors (see below), whose sum is σ = 105112320. Its totient is φ = 27125280.

The previous prime is 55155179. The next prime is 55155227. The reversal of 55155224 is 42255155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155227) 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 in 3 ways as a sum of consecutive naturals, for example, 56024 + ... + 56999.

It is an arithmetic number, because the mean of its divisors is an integer number (6569520).

Almost surely, 2^55155224 is an apocalyptic number.

It is an amenable number.

55155224 is a deficient number, since it is larger than the sum of its proper divisors (49957096).

55155224 is a wasteful number, since it uses less digits than its factorization.

55155224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113090 (or 113086 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 55155224 is about 7426.6563135775. The cubic root of 55155224 is about 380.6526733654.

The spelling of 55155224 in words is "fifty-five million, one hundred fifty-five thousand, two hundred twenty-four".