25052805061 has 2 divisors, whose sum is σ = 25052805062. Its totient is φ = 25052805060.

The previous prime is 25052805047. The next prime is 25052805101. The reversal of 25052805061 is 16050825052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24989602561 + 63202500 = 158081^2 + 7950^2 .

It is a cyclic number.

It is not a de Polignac number, because 25052805061 - 2⁹ = 25052804549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25052808061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12526402530 + 12526402531.

It is an arithmetic number, because the mean of its divisors is an integer number (12526402531).

Almost surely, 2^25052805061 is an apocalyptic number.

It is an amenable number.

25052805061 is a deficient number, since it is larger than the sum of its proper divisors (1).

25052805061 is an equidigital number, since it uses as much as digits as its factorization.

25052805061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 25052805061 in words is "twenty-five billion, fifty-two million, eight hundred five thousand, sixty-one".