25240656115523 has 2 divisors, whose sum is σ = 25240656115524. Its totient is φ = 25240656115522.

The previous prime is 25240656115517. The next prime is 25240656115531. The reversal of 25240656115523 is 32551165604252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25240656115523 - 2²⁰ = 25240655066947 is a prime.

It is a super-2 number, since 2×25240656115523² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25240656115573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12620328057761 + 12620328057762.

It is an arithmetic number, because the mean of its divisors is an integer number (12620328057762).

Almost surely, 2^{25240656115523} is an apocalyptic number.

25240656115523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25240656115523 is an equidigital number, since it uses as much as digits as its factorization.

25240656115523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 25240656115523 in words is "twenty-five trillion, two hundred forty billion, six hundred fifty-six million, one hundred fifteen thousand, five hundred twenty-three".