25523615263 has 2 divisors, whose sum is σ = 25523615264. Its totient is φ = 25523615262.

The previous prime is 25523615239. The next prime is 25523615267. The reversal of 25523615263 is 36251632552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25523615263 - 2¹³ = 25523607071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25523615267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761807631 + 12761807632.

It is an arithmetic number, because the mean of its divisors is an integer number (12761807632).

Almost surely, 2^25523615263 is an apocalyptic number.

25523615263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25523615263 is an equidigital number, since it uses as much as digits as its factorization.

25523615263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 40.

The spelling of 25523615263 in words is "twenty-five billion, five hundred twenty-three million, six hundred fifteen thousand, two hundred sixty-three".