26263957 has 2 divisors, whose sum is σ = 26263958. Its totient is φ = 26263956.

The previous prime is 26263921. The next prime is 26263973. The reversal of 26263957 is 75936262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26071236 + 192721 = 5106^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 26263957 - 2⁷ = 26263829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26263987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13131978 + 13131979.

It is an arithmetic number, because the mean of its divisors is an integer number (13131979).

Almost surely, 2^26263957 is an apocalyptic number.

It is an amenable number.

26263957 is a deficient number, since it is larger than the sum of its proper divisors (1).

26263957 is an equidigital number, since it uses as much as digits as its factorization.

26263957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 26263957 is about 5124.8372657090. The cubic root of 26263957 is about 297.2487608890.

The spelling of 26263957 in words is "twenty-six million, two hundred sixty-three thousand, nine hundred fifty-seven".