26045381 has 2 divisors, whose sum is σ = 26045382. Its totient is φ = 26045380.

The previous prime is 26045359. The next prime is 26045389. The reversal of 26045381 is 18354062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22714756 + 3330625 = 4766^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 26045381 - 2¹⁴ = 26028997 is a prime.

It is a super-2 number, since 2×26045381² = 1356723742870322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26045389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13022690 + 13022691.

It is an arithmetic number, because the mean of its divisors is an integer number (13022691).

Almost surely, 2^26045381 is an apocalyptic number.

It is an amenable number.

26045381 is a deficient number, since it is larger than the sum of its proper divisors (1).

26045381 is an equidigital number, since it uses as much as digits as its factorization.

26045381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 26045381 is about 5103.4675466784. The cubic root of 26045381 is about 296.4218669574.

The spelling of 26045381 in words is "twenty-six million, forty-five thousand, three hundred eighty-one".