2816421325 has 12 divisors (see below), whose sum is σ = 3558257748. Its totient is φ = 2210624000.

The previous prime is 2816421299. The next prime is 2816421341. The reversal of 2816421325 is 5231246182.

It can be written as a sum of positive squares in 6 ways, for example, as 410224516 + 2406196809 = 20254^2 + 49053^2 .

It is not a de Polignac number, because 2816421325 - 2²⁷ = 2682203597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1061476 + ... + 1064125.

It is an arithmetic number, because the mean of its divisors is an integer number (296521479).

Almost surely, 2^2816421325 is an apocalyptic number.

2816421325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2816421325 is a deficient number, since it is larger than the sum of its proper divisors (741836423).

2816421325 is a wasteful number, since it uses less digits than its factorization.

2816421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125664 (or 2125659 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 2816421325 is about 53069.9663180598. The cubic root of 2816421325 is about 1412.2097578916.

The spelling of 2816421325 in words is "two billion, eight hundred sixteen million, four hundred twenty-one thousand, three hundred twenty-five".