277228055 has 8 divisors (see below), whose sum is σ = 358264032. Its totient is φ = 204722208.

The previous prime is 277227991. The next prime is 277228067. The reversal of 277228055 is 550822772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 277228055 - 2⁶ = 277227991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132459 + ... + 2132588.

It is an arithmetic number, because the mean of its divisors is an integer number (44783004).

Almost surely, 2^277228055 is an apocalyptic number.

277228055 is a deficient number, since it is larger than the sum of its proper divisors (81035977).

277228055 is a wasteful number, since it uses less digits than its factorization.

277228055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265065.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 277228055 is about 16650.1668159812. The cubic root of 277228055 is about 652.0472375664.

The spelling of 277228055 in words is "two hundred seventy-seven million, two hundred twenty-eight thousand, fifty-five".