278753055 has 64 divisors (see below), whose sum is σ = 529901568. Its totient is φ = 122480640.

The previous prime is 278753051. The next prime is 278753087. The reversal of 278753055 is 550357872.

It is not a de Polignac number, because 278753055 - 2² = 278753051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 278752998 and 278753016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278753051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 313822 + ... + 314708.

It is an arithmetic number, because the mean of its divisors is an integer number (8279712).

Almost surely, 2^278753055 is an apocalyptic number.

278753055 is a deficient number, since it is larger than the sum of its proper divisors (251148513).

278753055 is a wasteful number, since it uses less digits than its factorization.

278753055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 278753055 is about 16695.8993468456. The cubic root of 278753055 is about 653.2406644966.

The spelling of 278753055 in words is "two hundred seventy-eight million, seven hundred fifty-three thousand, fifty-five".