26135857 has 8 divisors (see below), whose sum is σ = 28671552. Its totient is φ = 23626800.

The previous prime is 26135839. The next prime is 26135891. The reversal of 26135857 is 75853162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26135857 - 2⁷ = 26135729 is a prime.

It is a super-2 number, since 2×26135857² = 1366166042248898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26135827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4573 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (3583944).

Almost surely, 2^26135857 is an apocalyptic number.

It is an amenable number.

26135857 is a deficient number, since it is larger than the sum of its proper divisors (2535695).

26135857 is a wasteful number, since it uses less digits than its factorization.

26135857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13319.

The product of its digits is 50400, while the sum is 37.

The square root of 26135857 is about 5112.3240312015. The cubic root of 26135857 is about 296.7647053554.

The spelling of 26135857 in words is "twenty-six million, one hundred thirty-five thousand, eight hundred fifty-seven".