25089537953609 has 2 divisors, whose sum is σ = 25089537953610. Its totient is φ = 25089537953608.

The previous prime is 25089537953581. The next prime is 25089537953651. The reversal of 25089537953609 is 90635973598052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23711027143609 + 1378510810000 = 4869397^2 + 1174100^2 .

It is a cyclic number.

It is not a de Polignac number, because 25089537953609 - 2⁸ = 25089537953353 is a prime.

It is a super-2 number, since 2×25089537953609² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25089437953609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544768976804 + 12544768976805.

It is an arithmetic number, because the mean of its divisors is an integer number (12544768976805).

Almost surely, 2^{25089537953609} is an apocalyptic number.

It is an amenable number.

25089537953609 is a deficient number, since it is larger than the sum of its proper divisors (1).

25089537953609 is an equidigital number, since it uses as much as digits as its factorization.

25089537953609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124000, while the sum is 71.

The spelling of 25089537953609 in words is "twenty-five trillion, eighty-nine billion, five hundred thirty-seven million, nine hundred fifty-three thousand, six hundred nine".