2780550105 has 16 divisors (see below), whose sum is σ = 4494747264. Its totient is φ = 1467671040.

The previous prime is 2780550103. The next prime is 2780550121. The reversal of 2780550105 is 5010550872.

It is a happy number.

It is not a de Polignac number, because 2780550105 - 2¹ = 2780550103 is a prime.

It is a super-2 number, since 2×2780550105² = 15462917772831022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2780550103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954061 + ... + 956970.

It is an arithmetic number, because the mean of its divisors is an integer number (280921704).

Almost surely, 2^2780550105 is an apocalyptic number.

It is an amenable number.

2780550105 is a deficient number, since it is larger than the sum of its proper divisors (1714197159).

2780550105 is a wasteful number, since it uses less digits than its factorization.

2780550105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911136.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 2780550105 is about 52730.9217158206. The cubic root of 2780550105 is about 1406.1886076112.

The spelling of 2780550105 in words is "two billion, seven hundred eighty million, five hundred fifty thousand, one hundred five".