2825828021 has 2 divisors, whose sum is σ = 2825828022. Its totient is φ = 2825828020.

The previous prime is 2825828011. The next prime is 2825828023. The reversal of 2825828021 is 1208285282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2385247921 + 440580100 = 48839^2 + 20990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2825828021 - 2⁶ = 2825827957 is a prime.

Together with 2825828023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2825828023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1412914010 + 1412914011.

It is an arithmetic number, because the mean of its divisors is an integer number (1412914011).

Almost surely, 2^2825828021 is an apocalyptic number.

It is an amenable number.

2825828021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2825828021 is an equidigital number, since it uses as much as digits as its factorization.

2825828021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 2825828021 is about 53158.5178593234. The cubic root of 2825828021 is about 1413.7802456602.

The spelling of 2825828021 in words is "two billion, eight hundred twenty-five million, eight hundred twenty-eight thousand, twenty-one".