25055501110949 has 2 divisors, whose sum is σ = 25055501110950. Its totient is φ = 25055501110948.

The previous prime is 25055501110943. The next prime is 25055501110987. The reversal of 25055501110949 is 94901110555052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14396386182049 + 10659114928900 = 3794257^2 + 3264830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25055501110949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25055501110943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527750555474 + 12527750555475.

It is an arithmetic number, because the mean of its divisors is an integer number (12527750555475).

Almost surely, 2^{25055501110949} is an apocalyptic number.

It is an amenable number.

25055501110949 is a deficient number, since it is larger than the sum of its proper divisors (1).

25055501110949 is an equidigital number, since it uses as much as digits as its factorization.

25055501110949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 47.

The spelling of 25055501110949 in words is "twenty-five trillion, fifty-five billion, five hundred one million, one hundred ten thousand, nine hundred forty-nine".