26020513 has 2 divisors, whose sum is σ = 26020514. Its totient is φ = 26020512.

The previous prime is 26020499. The next prime is 26020517. The reversal of 26020513 is 31502062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17447329 + 8573184 = 4177^2 + 2928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26020513 is a prime.

It is not a weakly prime, because it can be changed into another prime (26020517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13010256 + 13010257.

It is an arithmetic number, because the mean of its divisors is an integer number (13010257).

Almost surely, 2^26020513 is an apocalyptic number.

It is an amenable number.

26020513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26020513 is an equidigital number, since it uses as much as digits as its factorization.

26020513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 26020513 is about 5101.0305821471. The cubic root of 26020513 is about 296.3274962089.

Adding to 26020513 its reverse (31502062), we get a palindrome (57522575).

The spelling of 26020513 in words is "twenty-six million, twenty thousand, five hundred thirteen".