25003552243 has 2 divisors, whose sum is σ = 25003552244. Its totient is φ = 25003552242.

The previous prime is 25003552201. The next prime is 25003552291. The reversal of 25003552243 is 34225530052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25003552243 is a prime.

It is not a weakly prime, because it can be changed into another prime (25003553243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501776121 + 12501776122.

It is an arithmetic number, because the mean of its divisors is an integer number (12501776122).

Almost surely, 2^25003552243 is an apocalyptic number.

25003552243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25003552243 is an equidigital number, since it uses as much as digits as its factorization.

25003552243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 31.

The spelling of 25003552243 in words is "twenty-five billion, three million, five hundred fifty-two thousand, two hundred forty-three".