25042234117 has 2 divisors, whose sum is σ = 25042234118. Its totient is φ = 25042234116.

The previous prime is 25042234079. The next prime is 25042234123. The reversal of 25042234117 is 71143224052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19200536356 + 5841697761 = 138566^2 + 76431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25042234117 is a prime.

It is a super-2 number, since 2×25042234117² (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 (25042234157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521117058 + 12521117059.

It is an arithmetic number, because the mean of its divisors is an integer number (12521117059).

Almost surely, 2^25042234117 is an apocalyptic number.

It is an amenable number.

25042234117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042234117 is an equidigital number, since it uses as much as digits as its factorization.

25042234117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 25042234117 its reverse (71143224052), we get a palindrome (96185458169).

The spelling of 25042234117 in words is "twenty-five billion, forty-two million, two hundred thirty-four thousand, one hundred seventeen".