25003552291 has 2 divisors, whose sum is σ = 25003552292. Its totient is φ = 25003552290.

The previous prime is 25003552243. The next prime is 25003552331. The reversal of 25003552291 is 19225530052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25003552291 is a prime.

It is not a weakly prime, because it can be changed into another prime (25003552201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501776145 + 12501776146.

It is an arithmetic number, because the mean of its divisors is an integer number (12501776146).

Almost surely, 2^25003552291 is an apocalyptic number.

25003552291 is a deficient number, since it is larger than the sum of its proper divisors (1).

25003552291 is an equidigital number, since it uses as much as digits as its factorization.

25003552291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 25003552291 in words is "twenty-five billion, three million, five hundred fifty-two thousand, two hundred ninety-one".