26345531 has 2 divisors, whose sum is σ = 26345532. Its totient is φ = 26345530.

The previous prime is 26345519. The next prime is 26345537. The reversal of 26345531 is 13554362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26345531 is a prime.

It is a super-2 number, since 2×26345531² = 1388174007343922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26345494 and 26345503.

It is not a weakly prime, because it can be changed into another prime (26345537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13172765 + 13172766.

It is an arithmetic number, because the mean of its divisors is an integer number (13172766).

Almost surely, 2^26345531 is an apocalyptic number.

26345531 is a deficient number, since it is larger than the sum of its proper divisors (1).

26345531 is an equidigital number, since it uses as much as digits as its factorization.

26345531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 26345531 is about 5132.7897872405. The cubic root of 26345531 is about 297.5561873961.

Adding to 26345531 its reverse (13554362), we get a palindrome (39899893).

The spelling of 26345531 in words is "twenty-six million, three hundred forty-five thousand, five hundred thirty-one".