26405201 has 4 divisors (see below), whose sum is σ = 26434032. Its totient is φ = 26376372.

The previous prime is 26405179. The next prime is 26405213. The reversal of 26405201 is 10250462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26405201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26405261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12995 + ... + 14888.

It is an arithmetic number, because the mean of its divisors is an integer number (6608508).

Almost surely, 2^26405201 is an apocalyptic number.

It is an amenable number.

26405201 is a deficient number, since it is larger than the sum of its proper divisors (28831).

26405201 is an equidigital number, since it uses as much as digits as its factorization.

26405201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28830.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 26405201 is about 5138.5991281671. The cubic root of 26405201 is about 297.7806630383.

Adding to 26405201 its reverse (10250462), we get a palindrome (36655663).

The spelling of 26405201 in words is "twenty-six million, four hundred five thousand, two hundred one".