25830830272021 has 2 divisors, whose sum is σ = 25830830272022. Its totient is φ = 25830830272020.

The previous prime is 25830830271973. The next prime is 25830830272057. The reversal of 25830830272021 is 12027203803852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25004140171396 + 826690100625 = 5000414^2 + 909225^2 .

It is a cyclic number.

It is not a de Polignac number, because 25830830272021 - 2⁴¹ = 23631807016469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25830830272321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12915415136010 + 12915415136011.

It is an arithmetic number, because the mean of its divisors is an integer number (12915415136011).

Almost surely, 2^{25830830272021} is an apocalyptic number.

It is an amenable number.

25830830272021 is a deficient number, since it is larger than the sum of its proper divisors (1).

25830830272021 is an equidigital number, since it uses as much as digits as its factorization.

25830830272021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 25830830272021 in words is "twenty-five trillion, eight hundred thirty billion, eight hundred thirty million, two hundred seventy-two thousand, twenty-one".