26494561 has 2 divisors, whose sum is σ = 26494562. Its totient is φ = 26494560.

The previous prime is 26494537. The next prime is 26494577. The reversal of 26494561 is 16549462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18113536 + 8381025 = 4256^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 26494561 - 2¹¹ = 26492513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26494561.

It is not a weakly prime, because it can be changed into another prime (26494361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13247280 + 13247281.

It is an arithmetic number, because the mean of its divisors is an integer number (13247281).

Almost surely, 2^26494561 is an apocalyptic number.

It is an amenable number.

26494561 is a deficient number, since it is larger than the sum of its proper divisors (1).

26494561 is an equidigital number, since it uses as much as digits as its factorization.

26494561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 26494561 is about 5147.2867610033. The cubic root of 26494561 is about 298.1161994481.

The spelling of 26494561 in words is "twenty-six million, four hundred ninety-four thousand, five hundred sixty-one".