26501081 has 2 divisors, whose sum is σ = 26501082. Its totient is φ = 26501080.

The previous prime is 26501071. The next prime is 26501107. The reversal of 26501081 is 18010562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22174681 + 4326400 = 4709^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26501081 is a prime.

It is a super-2 number, since 2×26501081² = 1404614588337122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26501051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250540 + 13250541.

It is an arithmetic number, because the mean of its divisors is an integer number (13250541).

Almost surely, 2^26501081 is an apocalyptic number.

It is an amenable number.

26501081 is a deficient number, since it is larger than the sum of its proper divisors (1).

26501081 is an equidigital number, since it uses as much as digits as its factorization.

26501081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 26501081 is about 5147.9200654245. The cubic root of 26501081 is about 298.1406517398.

The spelling of 26501081 in words is "twenty-six million, five hundred one thousand, eighty-one".