26497253 has 2 divisors, whose sum is σ = 26497254. Its totient is φ = 26497252.

The previous prime is 26497243. The next prime is 26497277. The reversal of 26497253 is 35279462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16467364 + 10029889 = 4058^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 26497253 - 2⁶ = 26497189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26497223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13248626 + 13248627.

It is an arithmetic number, because the mean of its divisors is an integer number (13248627).

Almost surely, 2^26497253 is an apocalyptic number.

It is an amenable number.

26497253 is a deficient number, since it is larger than the sum of its proper divisors (1).

26497253 is an equidigital number, since it uses as much as digits as its factorization.

26497253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 26497253 is about 5147.5482513523. The cubic root of 26497253 is about 298.1262958805.

The spelling of 26497253 in words is "twenty-six million, four hundred ninety-seven thousand, two hundred fifty-three".