26535161 has 4 divisors (see below), whose sum is σ = 26552052. Its totient is φ = 26518272.

The previous prime is 26535151. The next prime is 26535167. The reversal of 26535161 is 16153562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16153562 = 2 ⋅8076781.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 19749136 = 2605^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 26535161 - 2⁶ = 26535097 is a prime.

It is a super-2 number, since 2×26535161² = 1408229538591842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26535167) 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, 5816 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (6638013).

Almost surely, 2^26535161 is an apocalyptic number.

It is an amenable number.

26535161 is a deficient number, since it is larger than the sum of its proper divisors (16891).

26535161 is a wasteful number, since it uses less digits than its factorization.

26535161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890.

The product of its digits is 5400, while the sum is 29.

The square root of 26535161 is about 5151.2290766379. The cubic root of 26535161 is about 298.2683984915.

The spelling of 26535161 in words is "twenty-six million, five hundred thirty-five thousand, one hundred sixty-one".