26222513 has 2 divisors, whose sum is σ = 26222514. Its totient is φ = 26222512.

The previous prime is 26222477. The next prime is 26222591. The reversal of 26222513 is 31522262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23493409 + 2729104 = 4847^2 + 1652^2 .

It is a cyclic number.

It is not a de Polignac number, because 26222513 - 2¹² = 26218417 is a prime.

It is not a weakly prime, because it can be changed into another prime (26222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13111256 + 13111257.

It is an arithmetic number, because the mean of its divisors is an integer number (13111257).

Almost surely, 2^26222513 is an apocalyptic number.

It is an amenable number.

26222513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26222513 is an equidigital number, since it uses as much as digits as its factorization.

26222513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 26222513 is about 5120.7922238654. The cubic root of 26222513 is about 297.0923277064.

Adding to 26222513 its reverse (31522262), we get a palindrome (57744775).

The spelling of 26222513 in words is "twenty-six million, two hundred twenty-two thousand, five hundred thirteen".