2778255575 has 12 divisors (see below), whose sum is σ = 3446540568. Its totient is φ = 2221634400.

The previous prime is 2778255569. The next prime is 2778255589. The reversal of 2778255575 is 5755528772.

It is a happy number.

2778255575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2778255575 - 2⁴ = 2778255559 is a prime.

It is a super-3 number, since 3×2778255575³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37229 + ... + 83321.

It is an arithmetic number, because the mean of its divisors is an integer number (287211714).

Almost surely, 2^2778255575 is an apocalyptic number.

2778255575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2778255575 is a deficient number, since it is larger than the sum of its proper divisors (668284993).

2778255575 is a wasteful number, since it uses less digits than its factorization.

2778255575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48514 (or 48509 counting only the distinct ones).

The product of its digits is 6860000, while the sum is 53.

The square root of 2778255575 is about 52709.1602570179. The cubic root of 2778255575 is about 1405.8017021725.

The spelling of 2778255575 in words is "two billion, seven hundred seventy-eight million, two hundred fifty-five thousand, five hundred seventy-five".