26445019 has 2 divisors, whose sum is σ = 26445020. Its totient is φ = 26445018.

The previous prime is 26445007. The next prime is 26445031. The reversal of 26445019 is 91054462.

It is a balanced prime because it is at equal distance from previous prime (26445007) and next prime (26445031).

It is a cyclic number.

It is not a de Polignac number, because 26445019 - 2⁵ = 26444987 is a prime.

It is a super-2 number, since 2×26445019² = 1398678059820722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26445049) 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, 13222509 + 13222510.

It is an arithmetic number, because the mean of its divisors is an integer number (13222510).

Almost surely, 2^26445019 is an apocalyptic number.

26445019 is a deficient number, since it is larger than the sum of its proper divisors (1).

26445019 is an equidigital number, since it uses as much as digits as its factorization.

26445019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26445019 is about 5142.4720709013. The cubic root of 26445019 is about 297.9302683560.

The spelling of 26445019 in words is "twenty-six million, four hundred forty-five thousand, nineteen".