26650243 has 2 divisors, whose sum is σ = 26650244. Its totient is φ = 26650242.

The previous prime is 26650231. The next prime is 26650291. The reversal of 26650243 is 34205662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26650243 - 2²¹ = 24553091 is a prime.

It is not a weakly prime, because it can be changed into another prime (26650343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13325121 + 13325122.

It is an arithmetic number, because the mean of its divisors is an integer number (13325122).

Almost surely, 2^26650243 is an apocalyptic number.

26650243 is a deficient number, since it is larger than the sum of its proper divisors (1).

26650243 is an equidigital number, since it uses as much as digits as its factorization.

26650243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 26650243 is about 5162.3873353324. The cubic root of 26650243 is about 298.6989695930.

The spelling of 26650243 in words is "twenty-six million, six hundred fifty thousand, two hundred forty-three".