26256761 has 2 divisors, whose sum is σ = 26256762. Its totient is φ = 26256760.

The previous prime is 26256757. The next prime is 26256767. The reversal of 26256761 is 16765262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 4541161 = 4660^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 26256761 - 2² = 26256757 is a prime.

It is a super-2 number, since 2×26256761² = 1378834996422242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26256767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13128380 + 13128381.

It is an arithmetic number, because the mean of its divisors is an integer number (13128381).

Almost surely, 2^26256761 is an apocalyptic number.

It is an amenable number.

26256761 is a deficient number, since it is larger than the sum of its proper divisors (1).

26256761 is an equidigital number, since it uses as much as digits as its factorization.

26256761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 26256761 is about 5124.1351465394. The cubic root of 26256761 is about 297.2216109122.

The spelling of 26256761 in words is "twenty-six million, two hundred fifty-six thousand, seven hundred sixty-one".