276621055 has 8 divisors (see below), whose sum is σ = 340041744. Its totient is φ = 215899200.

The previous prime is 276621049. The next prime is 276621077. The reversal of 276621055 is 550126672.

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

It is not a de Polignac number, because 276621055 - 2³ = 276621047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 276621055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674481 + ... + 674890.

It is an arithmetic number, because the mean of its divisors is an integer number (42505218).

Almost surely, 2^276621055 is an apocalyptic number.

276621055 is a deficient number, since it is larger than the sum of its proper divisors (63420689).

276621055 is a wasteful number, since it uses less digits than its factorization.

276621055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349417.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 276621055 is about 16631.9287817138. The cubic root of 276621055 is about 651.5709968144.

The spelling of 276621055 in words is "two hundred seventy-six million, six hundred twenty-one thousand, fifty-five".