25150136121647 has 2 divisors, whose sum is σ = 25150136121648. Its totient is φ = 25150136121646.

The previous prime is 25150136121589. The next prime is 25150136121661. The reversal of 25150136121647 is 74612163105152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25150136121647 - 2⁸ = 25150136121391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25150136121598 and 25150136121607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25150136111647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12575068060823 + 12575068060824.

It is an arithmetic number, because the mean of its divisors is an integer number (12575068060824).

Almost surely, 2^{25150136121647} is an apocalyptic number.

25150136121647 is a deficient number, since it is larger than the sum of its proper divisors (1).

25150136121647 is an equidigital number, since it uses as much as digits as its factorization.

25150136121647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

Adding to 25150136121647 its reverse (74612163105152), we get a palindrome (99762299226799).

The spelling of 25150136121647 in words is "twenty-five trillion, one hundred fifty billion, one hundred thirty-six million, one hundred twenty-one thousand, six hundred forty-seven".