26057131 has 4 divisors (see below), whose sum is σ = 26414152. Its totient is φ = 25700112.

The previous prime is 26057111. The next prime is 26057147. The reversal of 26057131 is 13175062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26057131 is a prime.

It is a super-2 number, since 2×26057131² = 1357948151902322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26057096 and 26057105.

It is not an unprimeable number, because it can be changed into a prime (26057111) 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, 178401 + ... + 178546.

It is an arithmetic number, because the mean of its divisors is an integer number (6603538).

Almost surely, 2^26057131 is an apocalyptic number.

26057131 is a deficient number, since it is larger than the sum of its proper divisors (357021).

26057131 is an equidigital number, since it uses as much as digits as its factorization.

26057131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357020.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 26057131 is about 5104.6185949589. The cubic root of 26057131 is about 296.4664357469.

The spelling of 26057131 in words is "twenty-six million, fifty-seven thousand, one hundred thirty-one".