2784105725 has 24 divisors (see below), whose sum is σ = 3814309440. Its totient is φ = 2005118720.

The previous prime is 2784105721. The next prime is 2784105757. The reversal of 2784105725 is 5275014872.

It is not a de Polignac number, because 2784105725 - 2² = 2784105721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784105721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132635 + ... + 152184.

It is an arithmetic number, because the mean of its divisors is an integer number (158929560).

Almost surely, 2^2784105725 is an apocalyptic number.

2784105725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2784105725 is a deficient number, since it is larger than the sum of its proper divisors (1030203715).

2784105725 is a wasteful number, since it uses less digits than its factorization.

2784105725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284869 (or 284864 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 2784105725 is about 52764.6256975258. The cubic root of 2784105725 is about 1406.7877387748.

The spelling of 2784105725 in words is "two billion, seven hundred eighty-four million, one hundred five thousand, seven hundred twenty-five".