26397256 has 16 divisors (see below), whose sum is σ = 49549500. Its totient is φ = 13184064.

The previous prime is 26397253. The next prime is 26397271. The reversal of 26397256 is 65279362.

It can be written as a sum of positive squares in 2 ways, for example, as 26112100 + 285156 = 5110^2 + 534^2 .

It is not an unprimeable number, because it can be changed into a prime (26397253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12570 + ... + 14518.

Almost surely, 2^26397256 is an apocalyptic number.

It is an amenable number.

26397256 is a deficient number, since it is larger than the sum of its proper divisors (23152244).

26397256 is a wasteful number, since it uses less digits than its factorization.

26397256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648 (or 3644 counting only the distinct ones).

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

The square root of 26397256 is about 5137.8259993892. The cubic root of 26397256 is about 297.7507938635.

The spelling of 26397256 in words is "twenty-six million, three hundred ninety-seven thousand, two hundred fifty-six".