25735255321 has 2 divisors, whose sum is σ = 25735255322. Its totient is φ = 25735255320.

The previous prime is 25735255297. The next prime is 25735255331. The reversal of 25735255321 is 12355253752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25529648400 + 205606921 = 159780^2 + 14339^2 .

It is a cyclic number.

It is not a de Polignac number, because 25735255321 - 2¹⁵ = 25735222553 is a prime.

It is not a weakly prime, because it can be changed into another prime (25735255331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12867627660 + 12867627661.

It is an arithmetic number, because the mean of its divisors is an integer number (12867627661).

Almost surely, 2^25735255321 is an apocalyptic number.

It is an amenable number.

25735255321 is a deficient number, since it is larger than the sum of its proper divisors (1).

25735255321 is an equidigital number, since it uses as much as digits as its factorization.

25735255321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315000, while the sum is 40.

The spelling of 25735255321 in words is "twenty-five billion, seven hundred thirty-five million, two hundred fifty-five thousand, three hundred twenty-one".