26413257 has 16 divisors (see below), whose sum is σ = 40158720. Its totient is φ = 15297792.

The previous prime is 26413241. The next prime is 26413259. The reversal of 26413257 is 75231462.

It is not a de Polignac number, because 26413257 - 2⁴ = 26413241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26413259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19257 + ... + 20582.

It is an arithmetic number, because the mean of its divisors is an integer number (2509920).

Almost surely, 2^26413257 is an apocalyptic number.

It is an amenable number.

26413257 is a deficient number, since it is larger than the sum of its proper divisors (13745463).

26413257 is a wasteful number, since it uses less digits than its factorization.

26413257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39872.

The product of its digits is 10080, while the sum is 30.

The square root of 26413257 is about 5139.3829396144. The cubic root of 26413257 is about 297.8109433999.

The spelling of 26413257 in words is "twenty-six million, four hundred thirteen thousand, two hundred fifty-seven".