26540163 has 32 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 16117920.

The previous prime is 26540117. The next prime is 26540177. The reversal of 26540163 is 36104562.

26540163 is a `hidden beast` number, since 2 + 654 + 0 + 1 + 6 + 3 = 666.

It is not a de Polignac number, because 26540163 - 2⁹ = 26539651 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26540263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28678 + ... + 29588.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^26540163 is an apocalyptic number.

26540163 is a deficient number, since it is larger than the sum of its proper divisors (16360317).

26540163 is a wasteful number, since it uses less digits than its factorization.

26540163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 26540163 is about 5151.7145689566. The cubic root of 26540163 is about 298.2871389694.

The spelling of 26540163 in words is "twenty-six million, five hundred forty thousand, one hundred sixty-three".