26408513 has 4 divisors (see below), whose sum is σ = 26424768. Its totient is φ = 26392260.

The previous prime is 26408489. The next prime is 26408527. The reversal of 26408513 is 31580462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26408513 - 2¹⁰ = 26407489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26408413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381 + ... + 9042.

It is an arithmetic number, because the mean of its divisors is an integer number (6606192).

Almost surely, 2^26408513 is an apocalyptic number.

It is an amenable number.

26408513 is a deficient number, since it is larger than the sum of its proper divisors (16255).

26408513 is a wasteful number, since it uses less digits than its factorization.

26408513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16254.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 26408513 is about 5138.9213848822. The cubic root of 26408513 is about 297.7931127110.

Adding to 26408513 its reverse (31580462), we get a palindrome (57988975).

The spelling of 26408513 in words is "twenty-six million, four hundred eight thousand, five hundred thirteen".