26116501 has 4 divisors (see below), whose sum is σ = 27017100. Its totient is φ = 25215904.

The previous prime is 26116499. The next prime is 26116513. The reversal of 26116501 is 10561162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 8468100 = 4201^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 26116501 - 2¹ = 26116499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26116591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450256 + ... + 450313.

It is an arithmetic number, because the mean of its divisors is an integer number (6754275).

Almost surely, 2^26116501 is an apocalyptic number.

It is an amenable number.

26116501 is a deficient number, since it is larger than the sum of its proper divisors (900599).

26116501 is an equidigital number, since it uses as much as digits as its factorization.

26116501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900598.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 26116501 is about 5110.4306080799. The cubic root of 26116501 is about 296.6914267654.

Adding to 26116501 its reverse (10561162), we get a palindrome (36677663).

The spelling of 26116501 in words is "twenty-six million, one hundred sixteen thousand, five hundred one".