25041440807 has 2 divisors, whose sum is σ = 25041440808. Its totient is φ = 25041440806.

The previous prime is 25041440791. The next prime is 25041440813. The reversal of 25041440807 is 70804414052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25041440807 - 2⁴ = 25041440791 is a prime.

It is a super-2 number, since 2×25041440807² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25041440857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520720403 + 12520720404.

It is an arithmetic number, because the mean of its divisors is an integer number (12520720404).

Almost surely, 2^25041440807 is an apocalyptic number.

25041440807 is a deficient number, since it is larger than the sum of its proper divisors (1).

25041440807 is an equidigital number, since it uses as much as digits as its factorization.

25041440807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 35.

Adding to 25041440807 its reverse (70804414052), we get a palindrome (95845854859).

The spelling of 25041440807 in words is "twenty-five billion, forty-one million, four hundred forty thousand, eight hundred seven".