2775254865 has 16 divisors (see below), whose sum is σ = 4633469568. Its totient is φ = 1415782016.

The previous prime is 2775254861. The next prime is 2775254917. The reversal of 2775254865 is 5684525772.

It is a cyclic number.

It is not a de Polignac number, because 2775254865 - 2² = 2775254861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2775254861) 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, 4021764 + ... + 4022453.

It is an arithmetic number, because the mean of its divisors is an integer number (289591848).

Almost surely, 2^2775254865 is an apocalyptic number.

It is an amenable number.

2775254865 is a deficient number, since it is larger than the sum of its proper divisors (1858214703).

2775254865 is a wasteful number, since it uses less digits than its factorization.

2775254865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044248.

The product of its digits is 4704000, while the sum is 51.

The square root of 2775254865 is about 52680.6877802483. The cubic root of 2775254865 is about 1405.2953985169.

The spelling of 2775254865 in words is "two billion, seven hundred seventy-five million, two hundred fifty-four thousand, eight hundred sixty-five".