55278148 has 12 divisors (see below), whose sum is σ = 99351532. Its totient is φ = 26892000.

The previous prime is 55278137. The next prime is 55278173. The reversal of 55278148 is 84187255.

55278148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28217344 + 27060804 = 5312^2 + 5202^2 .

It is a super-3 number, since 3×55278148³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55278148.

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, 186603 + ... + 186898.

Almost surely, 2^55278148 is an apocalyptic number.

It is an amenable number.

55278148 is a deficient number, since it is larger than the sum of its proper divisors (44073384).

55278148 is a wasteful number, since it uses less digits than its factorization.

55278148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373542 (or 373540 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 55278148 is about 7434.9275719404. The cubic root of 55278148 is about 380.9352493854.

The spelling of 55278148 in words is "fifty-five million, two hundred seventy-eight thousand, one hundred forty-eight".