2878255565 has 8 divisors (see below), whose sum is σ = 3635691360. Its totient is φ = 2181414672.

The previous prime is 2878255561. The next prime is 2878255573. The reversal of 2878255565 is 5655528782.

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 2878255565 - 2² = 2878255561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878255561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15148619 + ... + 15148808.

It is an arithmetic number, because the mean of its divisors is an integer number (454461420).

Almost surely, 2^2878255565 is an apocalyptic number.

It is an amenable number.

2878255565 is a deficient number, since it is larger than the sum of its proper divisors (757435795).

2878255565 is a wasteful number, since it uses less digits than its factorization.

2878255565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30297451.

The product of its digits is 6720000, while the sum is 53.

The square root of 2878255565 is about 53649.3761846305. The cubic root of 2878255565 is about 1422.4700059465.

The spelling of 2878255565 in words is "two billion, eight hundred seventy-eight million, two hundred fifty-five thousand, five hundred sixty-five".