26564145 has 32 divisors (see below), whose sum is σ = 44582400. Its totient is φ = 13488384.

The previous prime is 26564143. The next prime is 26564159. The reversal of 26564145 is 54146562.

It is not a de Polignac number, because 26564145 - 2¹ = 26564143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26564143) 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, 33979 + ... + 34751.

It is an arithmetic number, because the mean of its divisors is an integer number (1393200).

Almost surely, 2^26564145 is an apocalyptic number.

It is an amenable number.

26564145 is a deficient number, since it is larger than the sum of its proper divisors (18018255).

26564145 is a wasteful number, since it uses less digits than its factorization.

26564145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its digits is 28800, while the sum is 33.

The square root of 26564145 is about 5154.0416179926. The cubic root of 26564145 is about 298.3769571640.

The spelling of 26564145 in words is "twenty-six million, five hundred sixty-four thousand, one hundred forty-five".