278251053 has 16 divisors (see below), whose sum is σ = 394102656. Its totient is φ = 174021120.

The previous prime is 278251003. The next prime is 278251081. The reversal of 278251053 is 350152872.

It is not a de Polignac number, because 278251053 - 2¹² = 278246957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278251003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7248 + ... + 24678.

It is an arithmetic number, because the mean of its divisors is an integer number (24631416).

Almost surely, 2^278251053 is an apocalyptic number.

It is an amenable number.

278251053 is a deficient number, since it is larger than the sum of its proper divisors (115851603).

278251053 is a wasteful number, since it uses less digits than its factorization.

278251053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17764.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 278251053 is about 16680.8588807651. The cubic root of 278251053 is about 652.8482919110.

It can be divided in two parts, 2782 and 51053, that added together give a palindrome (53835).

The spelling of 278251053 in words is "two hundred seventy-eight million, two hundred fifty-one thousand, fifty-three".