26251031 has 2 divisors, whose sum is σ = 26251032. Its totient is φ = 26251030.

The previous prime is 26251007. The next prime is 26251033. The reversal of 26251031 is 13015262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26251031 - 2⁶ = 26250967 is a prime.

It is a super-2 number, since 2×26251031² = 1378233257125922, which contains 22 as substring.

Together with 26251033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26250994 and 26251012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26251033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125515 + 13125516.

It is an arithmetic number, because the mean of its divisors is an integer number (13125516).

Almost surely, 2^26251031 is an apocalyptic number.

26251031 is a deficient number, since it is larger than the sum of its proper divisors (1).

26251031 is an equidigital number, since it uses as much as digits as its factorization.

26251031 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 20.

The square root of 26251031 is about 5123.5759972894. The cubic root of 26251031 is about 297.1999884974.

Adding to 26251031 its reverse (13015262), we get a palindrome (39266293).

The spelling of 26251031 in words is "twenty-six million, two hundred fifty-one thousand, thirty-one".