26138633 has 2 divisors, whose sum is σ = 26138634. Its totient is φ = 26138632.

The previous prime is 26138587. The next prime is 26138653. The reversal of 26138633 is 33683162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25725184 + 413449 = 5072^2 + 643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26138633 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26138633.

It is not a weakly prime, because it can be changed into another prime (26138653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13069316 + 13069317.

It is an arithmetic number, because the mean of its divisors is an integer number (13069317).

Almost surely, 2^26138633 is an apocalyptic number.

It is an amenable number.

26138633 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138633 is an equidigital number, since it uses as much as digits as its factorization.

26138633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 26138633 is about 5112.5955247800. The cubic root of 26138633 is about 296.7752118619.

The spelling of 26138633 in words is "twenty-six million, one hundred thirty-eight thousand, six hundred thirty-three".