55228144 has 10 divisors (see below), whose sum is σ = 107004560. Its totient is φ = 27614064.

The previous prime is 55228141. The next prime is 55228153. The reversal of 55228144 is 44182255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55228141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725864 + ... + 1725895.

It is an arithmetic number, because the mean of its divisors is an integer number (10700456).

Almost surely, 2^55228144 is an apocalyptic number.

It is an amenable number.

55228144 is a deficient number, since it is larger than the sum of its proper divisors (51776416).

55228144 is a wasteful number, since it uses less digits than its factorization.

55228144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451767 (or 3451761 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 55228144 is about 7431.5640345758. The cubic root of 55228144 is about 380.8203514651.

The spelling of 55228144 in words is "fifty-five million, two hundred twenty-eight thousand, one hundred forty-four".