26145601 has 8 divisors (see below), whose sum is σ = 26488584. Its totient is φ = 25804800.

The previous prime is 26145599. The next prime is 26145661. The reversal of 26145601 is 10654162.

It can be written as a sum of positive squares in 4 ways, for example, as 12418576 + 13727025 = 3524^2 + 3705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26145601 - 2¹ = 26145599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26145661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45025 + ... + 45601.

It is an arithmetic number, because the mean of its divisors is an integer number (3311073).

Almost surely, 2^26145601 is an apocalyptic number.

It is an amenable number.

26145601 is a deficient number, since it is larger than the sum of its proper divisors (342983).

26145601 is a wasteful number, since it uses less digits than its factorization.

26145601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 26145601 is about 5113.2769336307. The cubic root of 26145601 is about 296.8015808251.

Adding to 26145601 its reverse (10654162), we get a palindrome (36799763).

The spelling of 26145601 in words is "twenty-six million, one hundred forty-five thousand, six hundred one".