2780525255 has 4 divisors (see below), whose sum is σ = 3336630312. Its totient is φ = 2224420200.

The previous prime is 2780525213. The next prime is 2780525261. The reversal of 2780525255 is 5525250872.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2780525255 - 2¹⁰ = 2780524231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278052521 + ... + 278052530.

It is an arithmetic number, because the mean of its divisors is an integer number (834157578).

Almost surely, 2^2780525255 is an apocalyptic number.

2780525255 is a deficient number, since it is larger than the sum of its proper divisors (556105057).

2780525255 is an equidigital number, since it uses as much as digits as its factorization.

2780525255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556105056.

The product of its (nonzero) digits is 280000, while the sum is 41.

The square root of 2780525255 is about 52730.6860850492. The cubic root of 2780525255 is about 1406.1844185251.

The spelling of 2780525255 in words is "two billion, seven hundred eighty million, five hundred twenty-five thousand, two hundred fifty-five".