26161633 has 2 divisors, whose sum is σ = 26161634. Its totient is φ = 26161632.

The previous prime is 26161621. The next prime is 26161661. The reversal of 26161633 is 33616162.

It is an a-pointer prime, because the next prime (26161661) can be obtained adding 26161633 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17447329 + 8714304 = 4177^2 + 2952^2 .

It is a cyclic number.

It is not a de Polignac number, because 26161633 - 2⁵ = 26161601 is a prime.

It is not a weakly prime, because it can be changed into another prime (26161033) 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, 13080816 + 13080817.

It is an arithmetic number, because the mean of its divisors is an integer number (13080817).

Almost surely, 2^26161633 is an apocalyptic number.

It is an amenable number.

26161633 is a deficient number, since it is larger than the sum of its proper divisors (1).

26161633 is an equidigital number, since it uses as much as digits as its factorization.

26161633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 26161633 is about 5114.8443769092. The cubic root of 26161633 is about 296.8622328471.

Adding to 26161633 its reverse (33616162), we get a palindrome (59777795).

The spelling of 26161633 in words is "twenty-six million, one hundred sixty-one thousand, six hundred thirty-three".