2825939821 has 8 divisors (see below), whose sum is σ = 2857106304. Its totient is φ = 2794881600.

The previous prime is 2825939759. The next prime is 2825939843. The reversal of 2825939821 is 1289395282.

2825939821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2825939821 - 2⁷ = 2825939693 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 (2825939891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25996 + ... + 79546.

It is an arithmetic number, because the mean of its divisors is an integer number (357138288).

Almost surely, 2^2825939821 is an apocalyptic number.

It is an amenable number.

2825939821 is a deficient number, since it is larger than the sum of its proper divisors (31166483).

2825939821 is a wasteful number, since it uses less digits than its factorization.

2825939821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54131.

The product of its digits is 622080, while the sum is 49.

The square root of 2825939821 is about 53159.5694207543. The cubic root of 2825939821 is about 1413.7988901715.

The spelling of 2825939821 in words is "two billion, eight hundred twenty-five million, nine hundred thirty-nine thousand, eight hundred twenty-one".