26275261 has 2 divisors, whose sum is σ = 26275262. Its totient is φ = 26275260.

The previous prime is 26275253. The next prime is 26275267. The reversal of 26275261 is 16257262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17388900 + 8886361 = 4170^2 + 2981^2 .

It is a cyclic number.

It is not a de Polignac number, because 26275261 - 2³ = 26275253 is a prime.

It is equal to p_1640587 and since 26275261 and 1640587 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26275267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13137630 + 13137631.

It is an arithmetic number, because the mean of its divisors is an integer number (13137631).

Almost surely, 2^26275261 is an apocalyptic number.

It is an amenable number.

26275261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26275261 is an equidigital number, since it uses as much as digits as its factorization.

26275261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 26275261 is about 5125.9400113540. The cubic root of 26275261 is about 297.2914000344.

The spelling of 26275261 in words is "twenty-six million, two hundred seventy-five thousand, two hundred sixty-one".