25359852461 has 2 divisors, whose sum is σ = 25359852462. Its totient is φ = 25359852460.

The previous prime is 25359852451. The next prime is 25359852541. The reversal of 25359852461 is 16425895352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19770047236 + 5589805225 = 140606^2 + 74765^2 .

It is a cyclic number.

It is not a de Polignac number, because 25359852461 - 2¹⁴ = 25359836077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25359852431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12679926230 + 12679926231.

It is an arithmetic number, because the mean of its divisors is an integer number (12679926231).

Almost surely, 2^25359852461 is an apocalyptic number.

It is an amenable number.

25359852461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25359852461 is an equidigital number, since it uses as much as digits as its factorization.

25359852461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592000, while the sum is 50.

The spelling of 25359852461 in words is "twenty-five billion, three hundred fifty-nine million, eight hundred fifty-two thousand, four hundred sixty-one".