25525553033 has 2 divisors, whose sum is σ = 25525553034. Its totient is φ = 25525553032.

The previous prime is 25525552999. The next prime is 25525553069. The reversal of 25525553033 is 33035552552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25264148809 + 261404224 = 158947^2 + 16168^2 .

It is a cyclic number.

It is not a de Polignac number, because 25525553033 - 2¹⁰ = 25525552009 is a prime.

It is not a weakly prime, because it can be changed into another prime (25525553633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762776516 + 12762776517.

It is an arithmetic number, because the mean of its divisors is an integer number (12762776517).

Almost surely, 2^25525553033 is an apocalyptic number.

It is an amenable number.

25525553033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525553033 is an equidigital number, since it uses as much as digits as its factorization.

25525553033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 337500, while the sum is 38.

The spelling of 25525553033 in words is "twenty-five billion, five hundred twenty-five million, five hundred fifty-three thousand, thirty-three".