278246255 has 12 divisors (see below), whose sum is σ = 388409400. Its totient is φ = 190797264.

The previous prime is 278246239. The next prime is 278246257. The reversal of 278246255 is 552642872.

It is not a de Polignac number, because 278246255 - 2⁴ = 278246239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278246257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567605 + ... + 568094.

It is an arithmetic number, because the mean of its divisors is an integer number (32367450).

Almost surely, 2^278246255 is an apocalyptic number.

278246255 is a deficient number, since it is larger than the sum of its proper divisors (110163145).

278246255 is a wasteful number, since it uses less digits than its factorization.

278246255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135718 (or 1135711 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The square root of 278246255 is about 16680.7150626105. The cubic root of 278246255 is about 652.8445394435.

The spelling of 278246255 in words is "two hundred seventy-eight million, two hundred forty-six thousand, two hundred fifty-five".