26315513 has 16 divisors (see below), whose sum is σ = 31827840. Its totient is φ = 21254400.

The previous prime is 26315503. The next prime is 26315521. The reversal of 26315513 is 31551362.

It is a cyclic number.

It is not a de Polignac number, because 26315513 - 2⁸ = 26315257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26315503) 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 in 15 ways as a sum of consecutive naturals, for example, 31643 + ... + 32463.

It is an arithmetic number, because the mean of its divisors is an integer number (1989240).

Almost surely, 2^26315513 is an apocalyptic number.

It is an amenable number.

26315513 is a deficient number, since it is larger than the sum of its proper divisors (5512327).

26315513 is a wasteful number, since it uses less digits than its factorization.

26315513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its digits is 2700, while the sum is 26.

The square root of 26315513 is about 5129.8648130336. The cubic root of 26315513 is about 297.4431329764.

Adding to 26315513 its reverse (31551362), we get a palindrome (57866875).

The spelling of 26315513 in words is "twenty-six million, three hundred fifteen thousand, five hundred thirteen".