26231603 has 2 divisors, whose sum is σ = 26231604. Its totient is φ = 26231602.

The previous prime is 26231587. The next prime is 26231617. The reversal of 26231603 is 30613262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26231603 - 2⁴ = 26231587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26231683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13115801 + 13115802.

It is an arithmetic number, because the mean of its divisors is an integer number (13115802).

Almost surely, 2^26231603 is an apocalyptic number.

26231603 is a deficient number, since it is larger than the sum of its proper divisors (1).

26231603 is an equidigital number, since it uses as much as digits as its factorization.

26231603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 26231603 is about 5121.6797049406. The cubic root of 26231603 is about 297.1266526301.

Adding to 26231603 its reverse (30613262), we get a palindrome (56844865).

The spelling of 26231603 in words is "twenty-six million, two hundred thirty-one thousand, six hundred three".