26284513 has 2 divisors, whose sum is σ = 26284514. Its totient is φ = 26284512.

The previous prime is 26284507. The next prime is 26284537. The reversal of 26284513 is 31548262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13667809 + 12616704 = 3697^2 + 3552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26284513 is a prime.

It is not a weakly prime, because it can be changed into another prime (26284553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13142256 + 13142257.

It is an arithmetic number, because the mean of its divisors is an integer number (13142257).

Almost surely, 2^26284513 is an apocalyptic number.

It is an amenable number.

26284513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26284513 is an equidigital number, since it uses as much as digits as its factorization.

26284513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 26284513 is about 5126.8424005425. The cubic root of 26284513 is about 297.3262898528.

The spelling of 26284513 in words is "twenty-six million, two hundred eighty-four thousand, five hundred thirteen".