2025243161021 has 2 divisors, whose sum is σ = 2025243161022. Its totient is φ = 2025243161020.

The previous prime is 2025243161003. The next prime is 2025243161027. The reversal of 2025243161021 is 1201613425202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1948397222500 + 76845938521 = 1395850^2 + 277211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025243161021 - 2¹⁴ = 2025243144637 is a prime.

It is a super-2 number, since 2×2025243161021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2025243161027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012621580510 + 1012621580511.

It is an arithmetic number, because the mean of its divisors is an integer number (1012621580511).

Almost surely, 2^{2025243161021} is an apocalyptic number.

It is an amenable number.

2025243161021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025243161021 is an equidigital number, since it uses as much as digits as its factorization.

2025243161021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 2025243161021 its reverse (1201613425202), we get a palindrome (3226856586223).

The spelling of 2025243161021 in words is "two trillion, twenty-five billion, two hundred forty-three million, one hundred sixty-one thousand, twenty-one".