2904809825 has 6 divisors (see below), whose sum is σ = 3601964214. Its totient is φ = 2323847840.

The previous prime is 2904809731. The next prime is 2904809879. The reversal of 2904809825 is 5289084092.

It can be written as a sum of positive squares in 3 ways, for example, as 291453184 + 2613356641 = 17072^2 + 51121^2 .

It is not a de Polignac number, because 2904809825 - 2²² = 2900615521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2904809825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58096172 + ... + 58096221.

It is an arithmetic number, because the mean of its divisors is an integer number (600327369).

Almost surely, 2^2904809825 is an apocalyptic number.

2904809825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2904809825 is a deficient number, since it is larger than the sum of its proper divisors (697154389).

2904809825 is a wasteful number, since it uses less digits than its factorization.

2904809825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116192403 (or 116192398 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2904809825 is about 53896.2876736422. The cubic root of 2904809825 is about 1426.8311045492.

The spelling of 2904809825 in words is "two billion, nine hundred four million, eight hundred nine thousand, eight hundred twenty-five".