25011441869 has 2 divisors, whose sum is σ = 25011441870. Its totient is φ = 25011441868.

The previous prime is 25011441827. The next prime is 25011441881. The reversal of 25011441869 is 96814411052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23825466025 + 1185975844 = 154355^2 + 34438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25011441869 is a prime.

It is a super-2 number, since 2×25011441869² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25011441269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12505720934 + 12505720935.

It is an arithmetic number, because the mean of its divisors is an integer number (12505720935).

Almost surely, 2^25011441869 is an apocalyptic number.

It is an amenable number.

25011441869 is a deficient number, since it is larger than the sum of its proper divisors (1).

25011441869 is an equidigital number, since it uses as much as digits as its factorization.

25011441869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 25011441869 in words is "twenty-five billion, eleven million, four hundred forty-one thousand, eight hundred sixty-nine".