2787252761225 has 12 divisors (see below), whose sum is σ = 3457432733580. Its totient is φ = 2229002654400.

The previous prime is 2787252761221. The next prime is 2787252761239. The reversal of 2787252761225 is 5221672527872.

2787252761225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 20097031696 + 2767155729529 = 141764^2 + 1663477^2 .

It is not a de Polignac number, because 2787252761225 - 2² = 2787252761221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2787252761221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19917746 + ... + 20057195.

It is an arithmetic number, because the mean of its divisors is an integer number (288119394465).

Almost surely, 2^{2787252761225} is an apocalyptic number.

2787252761225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2787252761225 is a deficient number, since it is larger than the sum of its proper divisors (670179972355).

2787252761225 is a wasteful number, since it uses less digits than its factorization.

2787252761225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39977740 (or 39977735 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 56.

The spelling of 2787252761225 in words is "two trillion, seven hundred eighty-seven billion, two hundred fifty-two million, seven hundred sixty-one thousand, two hundred twenty-five".