26425517 has 2 divisors, whose sum is σ = 26425518. Its totient is φ = 26425516.

The previous prime is 26425501. The next prime is 26425549. The reversal of 26425517 is 71552462.

It is an a-pointer prime, because the next prime (26425549) can be obtained adding 26425517 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15007876 + 11417641 = 3874^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 26425517 - 2⁴ = 26425501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26425717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13212758 + 13212759.

It is an arithmetic number, because the mean of its divisors is an integer number (13212759).

Almost surely, 2^26425517 is an apocalyptic number.

It is an amenable number.

26425517 is a deficient number, since it is larger than the sum of its proper divisors (1).

26425517 is an equidigital number, since it uses as much as digits as its factorization.

26425517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 32.

The square root of 26425517 is about 5140.5755514339. The cubic root of 26425517 is about 297.8570136668.

Adding to 26425517 its reverse (71552462), we get a palindrome (97977979).

The spelling of 26425517 in words is "twenty-six million, four hundred twenty-five thousand, five hundred seventeen".