2025675057821 has 2 divisors, whose sum is σ = 2025675057822. Its totient is φ = 2025675057820.

The previous prime is 2025675057811. The next prime is 2025675057839. The reversal of 2025675057821 is 1287505765202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1745532446596 + 280142611225 = 1321186^2 + 529285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025675057821 - 2³⁸ = 1750797150877 is a prime.

It is a super-2 number, since 2×2025675057821² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2025675057821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2025675057811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012837528910 + 1012837528911.

It is an arithmetic number, because the mean of its divisors is an integer number (1012837528911).

Almost surely, 2^{2025675057821} is an apocalyptic number.

It is an amenable number.

2025675057821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025675057821 is an equidigital number, since it uses as much as digits as its factorization.

2025675057821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352000, while the sum is 50.

The spelling of 2025675057821 in words is "two trillion, twenty-five billion, six hundred seventy-five million, fifty-seven thousand, eight hundred twenty-one".