2825902649 has 4 divisors (see below), whose sum is σ = 2855035764. Its totient is φ = 2796769536.

The previous prime is 2825902631. The next prime is 2825902657. The reversal of 2825902649 is 9462095282.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1078662649 + 1747240000 = 32843^2 + 41800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2825902649 - 2⁸ = 2825902393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2825902669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14566412 + ... + 14566605.

It is an arithmetic number, because the mean of its divisors is an integer number (713758941).

Almost surely, 2^2825902649 is an apocalyptic number.

It is an amenable number.

2825902649 is a deficient number, since it is larger than the sum of its proper divisors (29133115).

2825902649 is an equidigital number, since it uses as much as digits as its factorization.

2825902649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29133114.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 2825902649 is about 53159.2197929955. The cubic root of 2825902649 is about 1413.7926911762.

The spelling of 2825902649 in words is "two billion, eight hundred twenty-five million, nine hundred two thousand, six hundred forty-nine".