55499144 has 16 divisors (see below), whose sum is σ = 104752320. Its totient is φ = 27565200.

The previous prime is 55499137. The next prime is 55499179. The reversal of 55499144 is 44199455.

55499144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×55499144³ (a number of 24 digits) contains 333 as substring.

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, 21764 + ... + 24179.

It is an arithmetic number, because the mean of its divisors is an integer number (6547020).

Almost surely, 2^55499144 is an apocalyptic number.

It is an amenable number.

55499144 is a deficient number, since it is larger than the sum of its proper divisors (49253176).

55499144 is a wasteful number, since it uses less digits than its factorization.

55499144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46100 (or 46096 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 55499144 is about 7449.7747616958. The cubic root of 55499144 is about 381.4422202242.

The spelling of 55499144 in words is "fifty-five million, four hundred ninety-nine thousand, one hundred forty-four".