26620065 has 24 divisors (see below), whose sum is σ = 46606248. Its totient is φ = 14054400.

The previous prime is 26620051. The next prime is 26620067. The reversal of 26620065 is 56002662.

It can be written as a sum of positive squares in 4 ways, for example, as 16064064 + 10556001 = 4008^2 + 3249^2 .

It is not a de Polignac number, because 26620065 - 2⁴ = 26620049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26620067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1617 + ... + 7473.

It is an arithmetic number, because the mean of its divisors is an integer number (1941927).

Almost surely, 2^26620065 is an apocalyptic number.

It is an amenable number.

26620065 is a deficient number, since it is larger than the sum of its proper divisors (19986183).

26620065 is a wasteful number, since it uses less digits than its factorization.

26620065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969 (or 5966 counting only the distinct ones).

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

The square root of 26620065 is about 5159.4636349140. The cubic root of 26620065 is about 298.5861808516.

The spelling of 26620065 in words is "twenty-six million, six hundred twenty thousand, sixty-five".