26138475 has 72 divisors (see below), whose sum is σ = 52228800. Its totient is φ = 12388800.

The previous prime is 26138473. The next prime is 26138501. The reversal of 26138475 is 57483162.

It is not a de Polignac number, because 26138475 - 2¹ = 26138473 is a prime.

Together with 26090325 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (26138473) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145936 + ... + 146114.

It is an arithmetic number, because the mean of its divisors is an integer number (725400).

Almost surely, 2^26138475 is an apocalyptic number.

26138475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26138475 is a deficient number, since it is larger than the sum of its proper divisors (26090325).

26138475 is a wasteful number, since it uses less digits than its factorization.

26138475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 26138475 is about 5112.5800727226. The cubic root of 26138475 is about 296.7746138891.

The spelling of 26138475 in words is "twenty-six million, one hundred thirty-eight thousand, four hundred seventy-five".