25532833310861 has 2 divisors, whose sum is σ = 25532833310862. Its totient is φ = 25532833310860.

The previous prime is 25532833310849. The next prime is 25532833310879. The reversal of 25532833310861 is 16801333823552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19164528708361 + 6368304602500 = 4377731^2 + 2523550^2 .

It is a cyclic number.

It is not a de Polignac number, because 25532833310861 - 2²⁶ = 25532766201997 is a prime.

It is a super-2 number, since 2×25532833310861² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25532833313861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766416655430 + 12766416655431.

It is an arithmetic number, because the mean of its divisors is an integer number (12766416655431).

Almost surely, 2^{25532833310861} is an apocalyptic number.

It is an amenable number.

25532833310861 is a deficient number, since it is larger than the sum of its proper divisors (1).

25532833310861 is an equidigital number, since it uses as much as digits as its factorization.

25532833310861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 25532833310861 in words is "twenty-five trillion, five hundred thirty-two billion, eight hundred thirty-three million, three hundred ten thousand, eight hundred sixty-one".