2778055575 has 24 divisors (see below), whose sum is σ = 4792752768. Its totient is φ = 1417210080.

The previous prime is 2778055487. The next prime is 2778055627. The reversal of 2778055575 is 5755508772.

It is not a de Polignac number, because 2778055575 - 2⁷ = 2778055447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803509 + ... + 806958.

It is an arithmetic number, because the mean of its divisors is an integer number (199698032).

Almost surely, 2^2778055575 is an apocalyptic number.

2778055575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2778055575 is a deficient number, since it is larger than the sum of its proper divisors (2014697193).

2778055575 is a wasteful number, since it uses less digits than its factorization.

2778055575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610503 (or 1610498 counting only the distinct ones).

The product of its (nonzero) digits is 3430000, while the sum is 51.

The square root of 2778055575 is about 52707.2630194359. The cubic root of 2778055575 is about 1405.7679679245.

The spelling of 2778055575 in words is "two billion, seven hundred seventy-eight million, fifty-five thousand, five hundred seventy-five".