26012405533 has 2 divisors, whose sum is σ = 26012405534. Its totient is φ = 26012405532.

The previous prime is 26012405467. The next prime is 26012405647. The reversal of 26012405533 is 33550421062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16023002724 + 9989402809 = 126582^2 + 99947^2 .

It is a cyclic number.

It is not a de Polignac number, because 26012405533 - 2⁹ = 26012405021 is a prime.

It is a super-2 number, since 2×26012405533² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26012405495 and 26012405504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26012405233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13006202766 + 13006202767.

It is an arithmetic number, because the mean of its divisors is an integer number (13006202767).

Almost surely, 2^26012405533 is an apocalyptic number.

It is an amenable number.

26012405533 is a deficient number, since it is larger than the sum of its proper divisors (1).

26012405533 is an equidigital number, since it uses as much as digits as its factorization.

26012405533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 26012405533 its reverse (33550421062), we get a palindrome (59562826595).

The spelling of 26012405533 in words is "twenty-six billion, twelve million, four hundred five thousand, five hundred thirty-three".