26253493 has 4 divisors (see below), whose sum is σ = 30004000. Its totient is φ = 22502988.

The previous prime is 26253463. The next prime is 26253499. The reversal of 26253493 is 39435262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26253493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26253499) 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 in 3 ways as a sum of consecutive naturals, for example, 1875243 + ... + 1875256.

It is an arithmetic number, because the mean of its divisors is an integer number (7501000).

Almost surely, 2^26253493 is an apocalyptic number.

It is an amenable number.

26253493 is a deficient number, since it is larger than the sum of its proper divisors (3750507).

26253493 is an equidigital number, since it uses as much as digits as its factorization.

26253493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750506.

The product of its digits is 38880, while the sum is 34.

The square root of 26253493 is about 5123.8162535360. The cubic root of 26253493 is about 297.2092793515.

The spelling of 26253493 in words is "twenty-six million, two hundred fifty-three thousand, four hundred ninety-three".