2780255007 has 12 divisors (see below), whose sum is σ = 4019392104. Its totient is φ = 1851902640.

The previous prime is 2780255003. The next prime is 2780255017. The reversal of 2780255007 is 7005520872.

2780255007 is a `hidden beast` number, since 27 + 80 + 2 + 550 + 0 + 7 = 666.

It is not a de Polignac number, because 2780255007 - 2² = 2780255003 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780255003) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 122344 + ... + 143277.

It is an arithmetic number, because the mean of its divisors is an integer number (334949342).

Almost surely, 2^2780255007 is an apocalyptic number.

2780255007 is a deficient number, since it is larger than the sum of its proper divisors (1239137097).

2780255007 is a wasteful number, since it uses less digits than its factorization.

2780255007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266790 (or 266787 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 2780255007 is about 52728.1234921176. The cubic root of 2780255007 is about 1406.1388598861.

Adding to 2780255007 its reverse (7005520872), we get a palindrome (9785775879).

The spelling of 2780255007 in words is "two billion, seven hundred eighty million, two hundred fifty-five thousand, seven".