2897775725 has 12 divisors (see below), whose sum is σ = 3869645556. Its totient is φ = 2139895680.

The previous prime is 2897775721. The next prime is 2897775733. The reversal of 2897775725 is 5275777982.

2897775725 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 1203465481 + 1694310244 = 34691^2 + 41162^2 .

It is not a de Polignac number, because 2897775725 - 2² = 2897775721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897775721) 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, 4457792 + ... + 4458441.

It is an arithmetic number, because the mean of its divisors is an integer number (322470463).

Almost surely, 2^2897775725 is an apocalyptic number.

2897775725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2897775725 is a deficient number, since it is larger than the sum of its proper divisors (971869831).

2897775725 is a wasteful number, since it uses less digits than its factorization.

2897775725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916256 (or 8916251 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 59.

The square root of 2897775725 is about 53830.9922349570. The cubic root of 2897775725 is about 1425.6784662907.

The spelling of 2897775725 in words is "two billion, eight hundred ninety-seven million, seven hundred seventy-five thousand, seven hundred twenty-five".