25823306136257 has 4 divisors (see below), whose sum is σ = 29512349870016. Its totient is φ = 22134262402500.

The previous prime is 25823306136239. The next prime is 25823306136269. The reversal of 25823306136257 is 75263160332852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25823306136257 - 2³⁶ = 25754586659521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25823306136199 and 25823306136208.

It is not an unprimeable number, because it can be changed into a prime (25823306136757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844521866869 + ... + 1844521866882.

It is an arithmetic number, because the mean of its divisors is an integer number (7378087467504).

Almost surely, 2^{25823306136257} is an apocalyptic number.

It is an amenable number.

25823306136257 is a deficient number, since it is larger than the sum of its proper divisors (3689043733759).

25823306136257 is an equidigital number, since it uses as much as digits as its factorization.

25823306136257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689043733758.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 25823306136257 in words is "twenty-five trillion, eight hundred twenty-three billion, three hundred six million, one hundred thirty-six thousand, two hundred fifty-seven".