25534214317 has 2 divisors, whose sum is σ = 25534214318. Its totient is φ = 25534214316.

The previous prime is 25534214281. The next prime is 25534214327. The reversal of 25534214317 is 71341243552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14427372996 + 11106841321 = 120114^2 + 105389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25534214317 is a prime.

It is a super-2 number, since 2×25534214317² (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 (25534214327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12767107158 + 12767107159.

It is an arithmetic number, because the mean of its divisors is an integer number (12767107159).

Almost surely, 2^25534214317 is an apocalyptic number.

It is an amenable number.

25534214317 is a deficient number, since it is larger than the sum of its proper divisors (1).

25534214317 is an equidigital number, since it uses as much as digits as its factorization.

25534214317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

Adding to 25534214317 its reverse (71341243552), we get a palindrome (96875457869).

The spelling of 25534214317 in words is "twenty-five billion, five hundred thirty-four million, two hundred fourteen thousand, three hundred seventeen".