26542161 has 28 divisors (see below), whose sum is σ = 41551488. Its totient is φ = 16914744.

The previous prime is 26542141. The next prime is 26542181. The reversal of 26542161 is 16124562.

26542161 is a `hidden beast` number, since 2 + 654 + 2 + 1 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (26542141) and next prime (26542181).

It is not a de Polignac number, because 26542161 - 2¹⁷ = 26411089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (26542141) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 15976 + ... + 17558.

Almost surely, 2^26542161 is an apocalyptic number.

It is an amenable number.

26542161 is a deficient number, since it is larger than the sum of its proper divisors (15009327).

26542161 is an equidigital number, since it uses as much as digits as its factorization.

26542161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1609 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 26542161 is about 5151.9084813300. The cubic root of 26542161 is about 298.2946240119.

The spelling of 26542161 in words is "twenty-six million, five hundred forty-two thousand, one hundred sixty-one".